Skip to content

Cosmoledo Atoll Seychelles The GT Capital Of The World

Customer Rating 89%
Tour Code SEY005

A Fly Anglers Paradise

In recent years, Cosmoledo Atoll has become one of the most sought-after saltwater fly fishing destinations in the world. In no small part, this is because the destination is famed for its unbelievable Giant Trevally fishing, so much, so it’s known as the GT capital of the world. Located 1,030 kilometres south-west of Mahé, the largest island in Seychelles, the atoll is situated a stone’s throw away from the world heritage site of Aldabra, which is often referred to as the Galapagos of the Indian Ocean.

Cosmoledo Atoll itself comprises of a large, white sand lagoon surrounded by eighteen islands, numerous flats and two main channels. The islands of Menai and Wizard occupy the east and west points of the atoll and are named after the two ships that explored them in the Moresby Expedition in 1822. South Island stands near the main entrance to the inner lagoon, while the second smaller entrance is just south of Menai. The northern islands are interspersed with numerous islets and banks.

This atoll is a diverse nature lover’s paradise of incredible beauty. The ecosystem is pristine and untouched, with humans having had minimal impact on its environment over the years. Daily, the encounters you will witness are proof of just how remote and preserved this magnificent atoll is. Home to some of the most explosive flats fishing anywhere on the globe, just getting there is an adventure in itself.

GT Fly Fishing SeychellesGT Fly Fishing Seychelles
GT Fly Fishing SeychellesGT fishing Seychelles

Saltwater Fly Fishing Playground

Cosmoledo’s large white sand flats, lagoon edges, and channels are ruled by the Giant Trevally or the ‘Gangsters Of The Flats’ as there known, and the island is home to the single most significant concentration of GTs in the Indian Ocean. In this untouched ecosystem, these tackle-busting giants reign supreme and are one of the main attractions for the travelling saltwater fly fishing angler. However, it’s not just GT’s that fly fishing Cosmoledo is famed for; there’s a whole host of other species abundant throughout the fishery. Bonefish, milkfish, the Indo-Pacific Permit, and a host of Triggerfish species all call the island home and can be caught throughout the fishing season.

The fly fishing on Cosmoledo Atoll is a mixture of either wading the flats or fishing from the skiff over larger areas. The hard white sand, turtle grass and coral flats of the island make for easy wading, thus separating it from many other destinations in the world. It’s not just flats fishing you can enjoy though, as there’s also a bluewater and offshore fishery on the island. Using conventional tackle or fly fishing, you can target species like Barracuda, Sailfish, Yellowfin Tuna and Dogtooth Tuna. Fly fishing for these species, practising switch and tease methods is ultra exciting. The guides will tease target species to the surface, such as Sailfish and Tuna, before you cast your fly into the action as the teasers are removed.

The Best Time For Fishing On Cosmoledo Atoll

Each season the fly fishing on Cosmoledo is open to anglers from the beginning of November to the end of April. The fishing dates have traditionally been set from October onwards to avoid the less stable weather patterns that can be experienced outside of this period. Weeks with full or new moons tend to be at a premium as the increase in tidal range and flow of water, in and out of the flats, benefit the GT’s that lie in ambush. Sometimes when fishing for the other flats species, the opposites may apply, as many of them form part of the Giant Trevallys diet.

With the tides playing a massive role in the fishing, dictating where each species is at which time of the day, it’s possible to have many different ‘sessions’ at various locations within the same day. But the world-class fishing guides on the island know the area and fishery well and will plan and execute each day based on the tides, overall conditions and the species you’d like to target.

Over a typical six days of fishing, you should always experience a wide variety of conditions and scenarios. This variety is one of the significant attractions of fishing in the Indian ocean and the little gem that is Cosmoledo Island.

Fly Fishing Cosmoledo AtollGT Fly Fishing Seychelles
Fly Fishing Cosmoledo AtollGT Fly Fishing Seychelles

Fly Fishing Cosmoledo With World-Class Guides

Each day the fishing on Cosmoledo Atoll will see two anglers with one guide, and the fishing is a mixture of either wading the flats or from the skiffs over larger areas. Utilizing the Mahe tender boats, the guides will explore every inch of the fishing grounds, going the extra mile in search of your fish of a lifetime. All Cosmoledo fishing trips are led by a team of world-class professional fly fishing guides, who have amassed a very considerable amount of hard-earned experience regarding all facets of fly fishing these remote atoll destinations. Each guide is a qualified skipper, has first aid experience, speaks English, and their passion and dedication are infectious.

For fly fishing, as a general rule, when fishing for the smaller, slightly easier species such as Bonefish, Milkfish and Permit, then an 8-weight or 9-weight outfit is sufficient. For the more significant, somewhat more challenging species like Giant Trevally and Triggerfish, then a 10-weight or 12-weight outfit is more suitable. The destination is ideal for anglers of all abilities; however, if you’re an experienced caster, there is a good chance you’ll catch more fish.

The destination isn’t too physically demanding, but to get the best out of it, and if you wish to spend all day fly fishing, you need to have a reasonable level of fitness and be able to walk certain distances each day.


Cosmoledo Eco-lodge is situated on Wizzard Island and consists of eight individual guest rooms, all of which are new, recrafted, and air-conditioned “Eco Pods” that perfectly blend in with the natural wilderness of the island. Equipped with modern amenities, the eco-pods are comfortable, clean, air-conditioned, and spacious, made up of custom-designed, upcycled beach cottages. The rooms are tailored in fresh neutral colours accentuating the island and her ocean, drawing in serenity, outdoor adventure and a sense of becoming one with your surroundings. Each cottage can be catered for as a double or twin set up and has all the amenities and modern luxuries one can expect. Each room boasts a front veranda with a seating area and a well-appointed outdoor shower.

Food & Drink

The dining and entertainment area is equipped with all the necessary features to make your stay one of comfort-in-style, consisting of a large tent with bare beach floors, great island character, and a fully stocked bar. Nature enthusiasts, divers, anglers, single travellers, and couples dine together for breakfast, lunch and dinner.

A full house buffet breakfast is served in the morning between 7.00 am and 8.00 am, and lunch in the form of packed lunch at the lodge between 12.00 pm and 1.00 pm. Dinner takes place between 7.30 pm and 9.30 pm and is the time everyone at the lodge comes together to share stories about the day’s adventures and the one’s that got away. The resident chef prepares a mix of Creole and international dishes and incorporates fresh fish daily and a combination of fruit and vegetables farmed in the Alphonse gardens.


All Cosmoledo trips are seven nights and include six and a half days of guided fishing. Because the island can only be accessed by a charter flight that runs once a week, all packages are fixed at one week in length.


The reason to make the trip to Cosmoledo is to fish. There is minimal infrastructure on the island; aside from wading the flats, walking the beach or snorkelling, there’s very little for the non-angler to do.


There is no Wi-Fi or cell reception on Cosmoledo. However, the guesthouse is equipped with a satellite phone that can be used by guests if needed.

To find out more about Seychelles and fly fishing Cosmoledo Atoll visit our YouTube channel.

Book with confidence

We have worked hard to be able to provide you with the best prices possible. If you are quoted a lower price we will endeavour to beat it.
We take the stress out of the holiday planning process. All of our holidays include flights, transfer and accommodation making booking a holiday simple.
All our destinations our meticulously researched by our expert team, who take pride in planning and tailoring your holiday to your exact needs.
We are ATOL protected. This means you have the financial security on your holiday when booking through Sportquest Holidays.
When your trip benefits others, you gain too. All our trips support communities and preserve nature - which helps you get closer to both. So when you travel with us, everyone wins.
Covid-19 Promise
We recognise that flexibility is important when booking a holiday. Our Covid-19 promise provides an unprecedented level of flexibility.



Although the fishing days are fixed, the below itinerary is still flexible should you require additional free days to explore at the beginning or end of your holiday; we can tailor this itinerary to suit you personally. Feel free to talk to our travel consultants who can explain all options available.

Day 1: (TUESDAY)

Depart UK (alternative routes available)


Arrive Dubai Depart Dubai

Arrive Victoria Mahe

On arrival, you will take a taxi to your hotel.

Overnight Accommodation: Le Relax Hotel (Twin Room) B/B


At a pre-arranged time you will make your way to the IDC hanger for a short flight to Astove

On arrival you will be transferred to the transfer vessel to Cosmoledo, during this transfer guides will give you all an orientation of the week ahead. The transfer takes approx 60 mins.

Overnight Accommodation: Cosmoledo Atoll Eco Lodge (Single or Twin Room) F/B

Days 4 to 6: Fishing Days (FRIDAY TO SUNDAY)

Breakfast is at 07:00h, fishing begins at 08:00h for lunch you have the choice of a packed lunch or returning to the lodge. Spend the whole day fishing with your guide targeting the species of your choice. You will arrive back at the lodge by 17:oo but are free to continue fishing unguided until sunset.

Overnight Accommodation: Cosmoledo Atoll Eco Lodge (Single or Twin Room) F/B

Days 7 to 9: Fishing Day (MONDAY TO WEDNESDAY)

Each day you may either fish the flats or the deeper channels targeting some monster GTs. All the skiffs will have Yeti cooler boxes with ice, drinks and desalinated water in our Yeti Rambler bottles. You can choose each day the species you wish to target and the guides will either take you to certain areas or give you their advice on when would be the best time to fish for that specific species.

Overnight Accommodation: Cosmoledo Atoll Eco Lodge (Single or Twin Room) F/B

Day 10: (THURSDAY)

The departure time of the transfer vessel and the plan for your departure morning will be confirmed with you at dinner the evening before departure day. You will be transferred to Astove by the transfer vessel where you will meet the Astove team who will transfer you to the airport.

On arrival, you will take a taxi to your hotel.

Overnight Accommodation: Le Relax Hotel (Twin Room) B/B

Day 11: (FRIDAY)

You will take a taxi back to the International Airport for your return flights.

Depart Victoria Mahe

Arrive Dubai Depart Dubai

Arrive UK

Customer Reviews

Average Customer Satisfaction Score 89%

View all reviews


The season runs from November to April.


Season: November to April
Peak: January & February
Weight: 2lb to 9lb
Average Weight: 4lb

Yellowmargin Triggerfish

Season: November to April
Peak: January & February
Weight: 1lb to 17lb
Average Weight: 4lb

Moustache Triggerfish

Season: November to April
Peak: January & February
Weight: 1lb to 20lb
Average Weight: 6lb


Season: November to April
Peak: January & February
Weight: 5lb to 50lb
Average Weight: 9lb

Indo-Pacific Permit

Season: November to April
Peak: January & February
Weight: 1lb to 25lb
Average Weight: 7lb

Giant Trevally

Season: November to April
Peak: January & February
Weight: 5lb to 120lb
Average Weight: 36lb

Bluefin Trevally

Season: November to April
Peak: January & February
Weight: 1lb to 40lb
Average Weight: 14lb


Season: November to April
Peak: January & February
Weight: 10lb to 50lb
Average Weight: 25lb

Dogtooth Tuna

Season: November to April
Peak: January & February
Weight: 10lb to 100lb
Average Weight: 30lb

Yellowfin Tuna

Season: November to April
Peak: January & February
Weight: 10lb to 80lb
Average Weight: 30lb


Season: November to April
Peak: January & February
Weight: 50lb to 100lb
Average Weight: 80lb

Package Details

Prices from
per person


  • All international flights
  • All internal flights
  • Transfers to Cosmoledo
  • All accommodation
  • 6 days fishing (2 anglers per 1 guide & skiff)
  • Three meals daily
  • Soft drinks during activities
  • Water, tea and coffee
  • Wine with dinner
  • Public Wi-Fi
  • Conservation donations USD175 per week


  • Travel and medical insurance
  • Mandatory emergency medical evacuation insurance
  • Beverages
  • Laundry and items of a personal nature
  • Telephone charges

Optional extras

  • Flight upgrades
  • Single room upgrades
  • Additional nights in Mahe
  • Non fishing packages / excursions

Price Supplements


View Latest Availability

Dates, Prices & Availability

Remember that Sportquest Holidays' services are completely FREE! When you book a trip with Sportquest Holidays, you never pay more than when you book directly with the lodge and flights independently.

Departing Returning Days Price Availability
08/11/2022 18/11/2022 11 £16,007 Sold Out
15/11/2022 25/11/2022 11 £16,007 Sold Out
22/11/2022 02/12/2022 11 £16,007 Sold Out
29/11/2022 09/12/2022 11 £16,007 Sold Out
06/12/2022 16/12/2022 11 £16,007 Sold Out
13/12/2022 23/12/2022 11 £16,007 Sold Out
20/12/2022 30/12/2022 11 £16,007 Sold Out
27/12/2022 06/01/2023 11 £16,344 Enquire Now
03/01/2023 13/01/2023 11 £16,344 Sold Out
10/01/2023 20/01/2023 11 £16,344 Sold Out
17/01/2023 27/01/2023 11 £16,344 Sold Out
24/01/2023 03/02/2023 11 £16,344 Enquire Now
31/01/2023 10/02/2023 11 £16,344 Sold Out
07/02/2023 17/02/2023 11 £16,344 Sold Out

Price Notes

Prices are based on two adults sharing transfers, fishing and accommodation in Mahe and twin accommodation on Cosmoledo (unless otherwise stated) and are correct at the time of going to press. Subject to time of year or date and currency fluctuations, these prices may fluctuate slightly due to flight price increases or fuel surcharges.

Make an Enquiry

To speak to an expert or receive more information about when is the best time to travel? What can you expect from your holiday? Who are the tour guides? Will someone be there to meet me? Plus, many more questions. Either call our offices, e-mail us or fill in the form, and we will get back to you asap.
+44 (0)1603 407596
16 Alston Road
Hellesdon Park



A brilliant, brilliant holiday. The fishing and guides were fantastic and the 'Eco Pod' accommodation was beautiful. Every morning it was surreal waking up in such a location. The destination has left a lasting impression on me and I'm 100% going to rebook again for next year.

Staff & Service
Would use Sportquest again
Would recommend Sportquest


I lost count of the number of 4lb+ Bonefish I caught, that's not to mention the different species of Trevally and Triggerfish! Pretty much the only species that eluded me was the Permit, but then that's given me a great excuse to re-visit next year.

Staff & Service
Would use Sportquest again
Would recommend Sportquest


The travelling time to reach Cosmoledo is long and drawn out, but that is to be expected for such a remote location. Once there I soon forgot about it though, especially when I got stuck into the fishing. The variety of species on offer was tremendous and on most days I was lucky enough to achieve my targets.

Staff & Service
Would use Sportquest again
Would recommend Sportquest

Alternative destinations

Fanning Island Fly Fishing

Described as the island that time forgot, Fanning is an exciting tropical island paradise with abundant saltwater fly fishing opportunities. Travelling rods who’ve been lucky enough to visit this incredible destination haven’t even scratched the surface, and the range of saltwater species that inhabit its waters have rarely seen a human, let alone an anglers fly.

Mango Creek Lodge Honduras

Fly fishing is the emphasis of Mango Creek Lodge’s fishing operation, and the Lodge is Roatan’s premier saltwater fishery, presenting the opportunities for travelling rods to hook up with a coveted ‘Grand Slam’. Located in secluded Port Royal on Roatan’s East End, it’s just a stone’s throw away from some of the islands most productive flats.

Blue Bayou Sailfish Guatemala

Often referred to as the Billfish capital of the world, Guatemala is famed for its insane averages and yearly release numbers of Sailfish and other hard fighting pelagics. Although many anglers travel to this beautiful region for big game fishing, it’s become increasingly popular amongst the saltwater fly fishing community.

Copal Tree Lodge Belize

Southern Belize’s Copal Tree Lodge is an idyllic high-end jungle hideaway overlooking the Rio Grande River in the ‘Green Heart of Belize’. Its location, setting, beautiful grounds, impeccable food, and service rank it among the finest destinations in the Caribbean, and it’s perfect for couples, families, and anglers alike.

Blue Horizon Lodge Belize

This fishing epicentre known as Blue Horizon Lodge is renowned for its vast array of expansive pancake flats that teem with marine life, and its fabled waters are some of the best places in the world to fish for tailing Permit in shallow water. For decades, Blue Horizon Lodge has been known as 'THE' destination for hardcore Permit anglers.

Latest Reports

Cosmoledo Atoll Fishing Report 26th May 2022

Week 25 at Cosmo we had neap tides this week with very little water movement. The wind was unfortunately not on our side either, but nonetheless everybody stayed positive and did the best with the...

Cosmoledo Atoll Fishing Report 24th May 2022

Week 24 we had spring tides with huge water movement here on Cosmoledo Atoll. Unfortunately, the weather was on the bad side of things, resulting in us having three days without boats on the water....

Cosmoledo Atoll Fishing Report 18th May 2022

This week brings us to the twenty-third week of the Cosmoledo Season of 21-22! Unfortunately, this week the weather did not play its part, we experienced constant heavy wind and multiple downpours throughout the week....
Contact Us