Trou d’Eau Douce: 5 Island Adventure with BBQ & Snorkeling

The best part of this six-hour speedboat trip is the mix. You get open-water thrills, a swim with fish, a waterfall stop, old colonial sites, possible dolphins and turtles, and a long beach lunch at Ile aux Cerfs. It is a lot of Mauritius in one day, without spending the whole outing on a bus.

I like the small group of up to 14 people, which keeps the boat more personal, and I like the generous lunch stop with BBQ food, drinks, beer, and local rum. Guides such as Oliver, Rajiv, and Wendel have been praised for making the ride fun and helping with photos. The main drawback is pace: several stops are brief, and the rougher water, rocks, and fast boat may not suit everyone.

Key points at a glance

• Fast speedboat, not a catamaran: Expect a lively ride across the southeast coast, with wind, spray, and quick transfers between stops.
• Five-island route with colonial history: Ile aux Fouquets and Ile de la Passe connect to the 1810 naval battle of Grand Port.
• Wildlife is a welcome bonus: Dolphins, sea turtles, monkeys, flying foxes, and reef fish have all been spotted, but none are guaranteed.
• Snorkeling and swimming are central: The main water stop lasts about 40 minutes, with another swim at Ile aux Aigrettes.
• Beach BBQ included: Lunch at Ile aux Cerfs lasts about two hours and includes drinks, with vegetarian food available.
• Bring water shoes: Some early island stops are rocky, and the supplied snorkel gear may not be the best fit for everyone.

A fast start from Trou d’Eau Douce

You meet at the jetty beside the Mauritius flag, near Blue Alizé Catamaran Ile aux Cerfs. Despite the meeting point name, this experience is operated by speedboat, not catamaran. That distinction matters: you should expect a quicker, bumpier ride rather than a slow sail.

The boat carries no more than 14 people, a useful limit when you are getting in and out for swims and short walks. The crew speaks French and English. Names that have drawn repeated praise include Oliver, Rajiv, Rajesh, Wendel, Jeremy, Ranjeev, and Derrick, though your guide will depend on the departure.

The ride itself is part of the attraction. Captains take the boat across open water at a brisk pace, and several people have singled out the speed as one of the most exciting parts. If you want a calm cruise with little spray, this may feel too lively. If you enjoy a fast boat, it adds real energy to the day.

You receive snacks and drinks during the outing. Local rum, rum and Coke, beer, and Mauritian coffee have all been part of the onboard experience described by guests. Drink sensibly, especially in the sun and before snorkeling.

Ile aux Cerfs, the easy crowd-pleaser

The first main stop is Ile aux Cerfs, one of the southeast’s best-known beach islands. You have around 40 minutes to walk, look around, or settle beside the clear water. The sand and shallow water make this the kind of stop that works for mixed groups, including people who want photos rather than a serious swim.

The weakness is time. Forty minutes goes quickly, especially if the boat is busy and you need to move between the jetty, beach, and meeting point. Treat this as a first look, not a full beach day. The longer beach break comes later.

Grand River South East and its waterfall

The speedboat then heads toward Grand River South East, usually called GRSE. The waterfall is reached from the water, so this is mainly a photo stop rather than a long walk inland. The visit lasts about 20 minutes.

The falls themselves may not impress everyone equally. Some people find the cascade modest, but the ride toward it brings another attraction: monkeys can often be seen around the river area. Guides have sometimes brought the boat close enough for good views, and monkeys have even approached boats.

That makes for memorable photographs, but I would avoid feeding them. Food can change wild animals’ behavior and encourage them to associate boats with handouts. Enjoy the sight, keep your fingers clear, and let the crew handle the boat.

Snorkeling near Grand Port

The main snorkeling and swimming stop lasts about 40 minutes in the Grand Port area. This is where the trip shifts from sightseeing to water time. You can use the included mask and snorkel to look for reef fish in clear water, with sea turtles an occasional bonus.

The underwater conditions depend on the day, wind, and sea. Several people have described the snorkeling as excellent, while one practical criticism concerned the quality of the shared equipment. If you care about a clean fit or clear mask, bring your own gear if you have it. A badly fitting mask can spoil an otherwise good swim.

Bring water shoes too. The island stops include rocks and uneven ground, and one person specifically wished they had aqua shoes. They are more useful here than ordinary sandals, which can slip or come off in the water.

Fouquets Island and the chance of dolphins

The route includes Fouquets Island, with time to watch for dolphins. This is not a marine park and there is no promise that dolphins will appear. Still, sightings have been common enough to become one of the day’s most talked-about bonuses, including mothers with calves.

You may also see sea turtles in the water. Some outings have included close turtle sightings during snorkeling, while others have found them from the boat. The responsible approach is to avoid chasing or crowding them. A good captain will slow down, give you a view, and move on rather than forcing an encounter.

The same applies to dolphins. Wildlife sightings add magic to the trip, but the route should not be judged only by whether an animal appears. The islands, swimming, food, and scenery provide the main value.

Ile aux Fouquets and its old lighthouse

Ile aux Fouquets, also known as Ile aux Phares, gives the tour its strongest historical detail. An old lighthouse more than 200 years old sits on the island and is now a protected historic monument. The stop lasts about 20 minutes, with time for a short walk and photos.

The southeast coast was important during the colonial period. In 1810, Ile aux Phares and Ile de la Passe were linked to the naval battle of Grand Port, fought between French and British forces. It is remembered as the only victory of the Napoleonic Navy and is listed on the Arc de Triomphe in Paris.

That story adds meaning to what might otherwise look like a small, rocky island. Look closely at the setting: one side can have calm turquoise lagoon water, while the outer side takes the full force of Indian Ocean waves. The contrast is striking and helps explain why these islands mattered for navigation and defense.

Commentary can vary by guide. Some captains, including Oliver and Rajiv, have been praised for adding useful explanations, while one person wished the guides had said more about each place. If you want the historical details, ask questions rather than waiting for a long talk.

Passing Ile de la Passe

The boat passes Ile de la Passe after the lighthouse stop. There is no extended landing listed here, so treat it as a scenic and historical view from the water. It is another chance to connect the islands with the Battle of Grand Port and to see how close the small islands are to the main shipping route.

This is also one of the places where the six-hour schedule shows its limits. You see a lot, but you do not get long, quiet periods at every island. The experience favors variety over depth.

Ile aux Aigrettes and a second swim

Ile aux Aigrettes brings another water break, lasting around 45 minutes. The stop includes an aperitif and swimming, giving you a chance to cool off after the speedboat ride and island walks.

The water can look calm and clear on the lagoon side, while waves break more heavily on the ocean side. Your crew will choose where conditions are suitable. You should still follow instructions, especially if wind or swell has picked up.

This stop is useful because it breaks up the sightseeing. You are not simply stepping off the boat for photos all day. You get two proper opportunities to swim, plus snorkeling equipment for the main reef stop.

A two-hour BBQ at Ile aux Cerfs

The longest stop comes at Ile aux Cerfs, where lunch is served on or beside the beach. You have about two hours for the BBQ, drinks, and free time. This is the point where the day slows down.

The food has been one of the most consistently praised parts of the outing. Expect grilled BBQ fare, drinks, beer, and local rum. Vegetarian meals have been provided, including for a group of four vegans, but state your dietary needs when booking or before boarding so the crew can prepare.

Some outings have offered lobster for an added charge. That is not part of the standard price, so ask before agreeing to any extra. The included meal is already a substantial part of the tour’s value.

After eating, you can walk on the beach, sunbathe, or swim in the clear water. Ile aux Cerfs is the best place to relax, but it can also be the busiest and most commercial-feeling stop on the route. This is not a deserted island escape. Its appeal is easy access, pale sand, clear water, and a comfortable lunch break.

Some boats also offer parasailing nearby, though it is an optional add-on rather than part of the advertised package. If that interests you, ask the crew about the current cost and timing. Do not let it cut too deeply into your included beach time.

Is $100 a fair price?

At $100 per person, the tour is good value if you want several activities bundled into one day. Your price covers the speedboat, guide, snacks, snorkeling gear, island visits, waterfall stop, swimming, and a beach BBQ with drinks. You also avoid arranging separate boat trips for Ile aux Cerfs, the lighthouse islands, and the river.

The value is strongest for first-time visitors and anyone with only a short stay. You see much of the southeast coast in six hours, including places that are awkward to combine independently.

The price is less attractive if you want long snorkeling sessions, quiet time on one beach, or detailed historical guiding. The route has many stops, so you trade depth for variety. You also need to arrange your own transport to and from Trou d’Eau Douce, since hotel pickup and drop-off are not included.

Free cancellation up to 24 hours before the trip and reserve-now, pay-later booking add flexibility. The tour is not suitable for pregnant women. Large bags and luggage are not allowed, so bring only what you need for the water.

What to pack for a better day

Keep your kit simple:

• Sunglasses and a sun hat
• Strong sunscreen
• A towel and swimsuit
• Water shoes or aqua shoes
• Your own snorkel mask if you prefer better-fitting gear
• A small waterproof pouch for essentials

Do not bring a suitcase or large beach bag. The boat has limited room, and wet gear is easier to manage when you pack lightly.

The sun, wind, salt water, and alcohol can catch up with you. Drink water whenever it is available, cover your shoulders, and keep your phone protected. If you are prone to motion sickness, the fast ride is worth considering before you book.

Who should book this speedboat trip?

I would choose this for couples, families with older children, solo visitors, and active groups who want a full southeast-coast sampler. It suits you if your ideal day includes a little history, a little wildlife, a swim, a fast ride, and a relaxed lunch.

Families can do well here. One family with an eight-year-old found the mix of animals, swimming, and food especially rewarding. Still, children should be comfortable around boats, waves, and getting in and out of the water.

I would hesitate if you are pregnant, dislike speedboats, need a fully quiet day, or want a carefully paced historical tour. It is also not the best fit if you expect every wildlife sighting to happen on schedule. Dolphins and turtles are possible, not guaranteed.

Should you book it?

Book it if you want maximum variety for one $100 outing. The speedboat makes it possible to combine Ile aux Cerfs, GRSE waterfall, snorkeling, the lighthouse island, Ile de la Passe, Ile aux Aigrettes, and a long BBQ lunch without spending multiple days on the coast.

Go in with realistic expectations. The first island stops can feel rocky, the waterfall may be less dramatic than its reputation, the snorkel gear may be basic, and some commentary may be brief. Bring water shoes, consider your own mask, and ask questions when you want more history.

For most active visitors, the combination of scenery, wildlife chances, swimming, food, and friendly guides makes this one of the stronger full-day choices in southeast Mauritius. If you prefer a slow sail or a single beach, choose something gentler instead.

FAQ

Where does the tour start?

You meet at the jetty next to the Mauritius flag, near Blue Alizé Catamaran Ile aux Cerfs in Trou d’Eau Douce.

Is the boat a catamaran?

No. The experience operates by speedboat, despite the meeting point name. Expect a fast ride across the southeast coast.

How long does the activity last?

The stated duration is six hours. The schedule includes around 40 minutes at Ile aux Cerfs, 20 minutes at the GRSE waterfall, 40 minutes for swimming and snorkeling, 20 minutes at Ile aux Fouquets, 45 minutes at Ile aux Aigrettes, and about two hours for lunch at Ile aux Cerfs.

Are lunch and drinks included?

Yes. Lunch, drinks, snacks, beer, and BBQ food are included. Vegetarian options have been provided. Lobster may be available for an additional charge, but it is not part of the standard package.

Is snorkeling equipment provided?

Yes. Snorkeling gear is included. You can bring your own equipment if you prefer a personal fit or have concerns about shared gear.

What should I bring, and can I cancel?

Bring sunglasses, a sun hat, sunscreen, and a towel. Water shoes and a personal snorkel mask may also be useful. Large bags and luggage are not allowed. You can cancel up to 24 hours in advance for a full refund.