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

The best part of this six-hour speedboat trip is the variety. In one outing, you race along Mauritius’ southeast coast, see the old lighthouse at Ile aux Fouquets, stop for snorkeling, watch for dolphins and turtles, visit the Grand River South East Waterfall, and finish with a beach BBQ at Ile aux Cerfs. It packs a lot into one day without leaving you tied to a slow catamaran.

I like the small group of up to 14 people, which makes it easier to get help getting in and out of the boat and to ask questions. I also like the mix of sea, history, wildlife, and food. Guides such as Oliver, Rajiv, Wendel, and Ranjeev have been praised for keeping the mood lively and helping with photos.

The main consideration is pace. You visit several places in a short time, so some stops feel like quick looks rather than long explorations. The first islands can seem rocky and sparse, the snorkeling equipment may be basic, and dolphin and turtle sightings are never guaranteed.

At a glance

• Speedboat, not a catamaran: Expect a fast, thrilling ride across open water, with wind, spray, and bumps.
• Five southeastern islands: Visit Ile aux Cerfs, Ile aux Fouquets, Ile de la Passe, Ile aux Aigrettes, and the nearby island areas around Grand Port.
• History with a view: The old lighthouse and the site of the 1810 naval battle add substance to what could otherwise be a simple beach trip.
• Wildlife opportunities: You may see dolphins, sea turtles, monkeys, flying foxes, fish, or even a barracuda.
• Beach BBQ included: Lunch, drinks, snacks, beer, and local rum-based drinks are part of the experience.
• Small-group setting: A maximum of 14 people gives the outing a more personal feel than a large party boat.

Why this east-coast trip packs in so much

Mauritius’ southeast coast is a good place for a boat day because the scenery changes quickly. You move from calm lagoon water to open Indian Ocean waves, from green river mouths to pale beaches, and from colonial-era landmarks to modern holiday spots.

The trip begins at the jetty beside the Mauritius flag, near Blue Alizé Catamaran Ile aux Cerfs. The name can be confusing because this experience uses a speedboat, not a catamaran. That distinction matters. The speedboat makes the day feel active and helps the boat cover more ground, but it is less gentle than a broad, steady catamaran.

You should expect sun, wind, spray, and a lively ride. If you enjoy the thrill of cutting across the waves, the transport is part of the fun. If you prefer a quiet cruise, the boat may feel tiring after several hours.

The group size is limited to 14. That is useful at swimming stops and during lunch because you are not dealing with a huge crowd. It also gives the guide room to check on people, help with photos, and adjust the outing when wildlife appears nearby.

Ile aux Cerfs, the famous beach stop

Ile aux Cerfs is the best-known stop on the route, and it appears twice in the day. The first visit gives you about 40 minutes to walk, look around, and enjoy the beach setting. Later, you return for roughly two hours, with lunch and time to swim or sit on the sand.

The island’s appeal is simple: bright water, soft sand, and an easy place to slow down after the faster parts of the trip. You can swim in the clear water, sunbathe, or simply sit with a drink while lunch is prepared.

The first 40-minute visit is short, so I would not expect a full island exploration. It works better as an introduction before the waterfalls and offshore islands. The longer return visit is where Ile aux Cerfs earns its place in the schedule.

Lunch is a beach BBQ, with drinks included. The food has received strong praise, including from people eating vegetarian and vegan meals. Beer and local rum drinks are available, along with snacks during the day. You may also be offered Mauritian coffee, a local-style drink that became a memorable part of the outing for several people.

One optional extra mentioned during the trip is parasailing for two people. It is not included in the listed price, so treat it as an add-on rather than part of the package.

Grand River South East Waterfall and the monkeys

The boat reaches the Grand River South East Waterfall for about 20 minutes. This is mainly a photo and sightseeing stop, rather than a long walk or a waterfall hike.

The cascade itself may not impress you as much as the setting. The trip along the river is often just as interesting, with steep green banks, quiet water, and monkeys visible near the shore. Guides sometimes bring the boat close enough for photographs, and several outings have included good monkey sightings.

You should be careful with the wildlife interaction. Some guides and boat operators feed monkeys or birds so they come closer to visitors. That can make for a memorable photograph, but feeding wild animals is not good practice. Enjoy seeing the monkeys, keep your hands and food secure, and avoid treating them like tame pets.

This stop is brief, so you will not have much time to linger. It is best understood as a scenic pause in a busy route, not a stand-alone waterfall excursion.

Grand Port, swimming, and the first snorkeling stop

The Grand Port section gives you about 40 minutes for swimming and snorkeling. You receive snorkeling gear as part of the tour, and the water can be clear enough to see fish and other marine life.

The snorkeling is one of the strongest reasons to book this trip. Several outings included sea turtles, and one person described swimming beside a turtle for around ten minutes. Those encounters depend on conditions and luck, but the guides actively look for marine life.

The provided masks and snorkels may not be top quality. If clean or well-fitting equipment matters to you, bring your own set. You should also pack a towel, sunscreen, sunglasses, and a hat. Aqua shoes are a smart addition because the rocky parts of the islands can be uncomfortable under bare feet.

This is not a dedicated reef safari with hours in one location. You get a useful swim and a chance to see fish, but the overall day keeps moving. I would book it for variety, not for a long technical snorkeling session.

Ile aux Fouquets and the old lighthouse

Ile aux Fouquets, also called Fouquets Island, is one of the more interesting stops because it gives the trip a historical edge. The old lighthouse dates back more than 200 years and is now a protected historical monument.

You get about 20 minutes for a visit, walk, and photographs. The lighthouse is weathered and exposed, with the open sea on one side and calmer lagoon water on the other. That contrast is one of the most striking sights of the day.

This part of Mauritius also connects to the naval battle of Grand Port in 1810, fought between French and British forces. It is remembered as the only victory of Napoleon’s navy and is listed on the Arc de Triomphe in Paris. Your guide may explain this story in English or French, but the amount of detail can vary.

That variation is worth noting. Some guides, including Oliver, Rajiv, Wendel, and Ranjeev, have been praised for mixing facts with humor and explaining the places along the way. At times, though, the commentary may be lighter than you expect. If colonial history is a major reason for booking, ask questions rather than waiting for a long formal talk.

Ile de la Passe and the open-ocean view

Ile de la Passe is mainly a sightseeing pass-by rather than a long landing. It forms part of the same historic setting as Ile aux Fouquets and the Grand Port naval battle.

The boat route lets you see how quickly the water changes around the islands. Inside the reef, the lagoon can be calm and turquoise. Outside, the Indian Ocean hits the rocks with much more force. That visual change explains why these islands mattered for navigation and defense.

Because you do not spend much time ashore here, think of Ile de la Passe as a moving viewpoint. It adds context to the lighthouse stop and gives you good scenery from the boat, but it is not a separate beach visit.

Ile aux Aigrettes and the wildlife search

The stop at Ile aux Aigrettes lasts about 45 minutes and combines swimming with an aperitif. It is another chance to get into the water, cool off, and enjoy a drink before lunch.

The boat also passes near Fouquets Island for dolphin watching. Dolphins are not guaranteed, but the guides often keep an eye out and may change direction if they spot a pod. Several outings included dolphins, sometimes with young animals, and some included turtles as well.

You may also see flying foxes, birds, or other marine life. These sightings are bonuses, not scheduled attractions. The same applies to the monkeys near the waterfall. A good guide can improve your chances by knowing where to look, but nature sets the timetable.

Give marine animals space. The best guides keep a respectful distance from dolphins and turtles, while other boats may move too close. You can still get a memorable view without chasing or crowding wildlife.

The BBQ, drinks, and two hours at the beach

The final two-hour stop at Ile aux Cerfs is the most relaxed part of the outing. After a morning of boat movement and water stops, you have time to eat, drink, swim, and sit on the beach without watching the clock every few minutes.

The BBQ is a real part of the value here. Lunch and drinks are included, along with snacks during the trip. Vegetarian choices are available, and vegan diners have also been accommodated with substantial food. If you want lobster, that may be available for an additional charge, but it is not part of the basic $100 price.

The drinks help create a social beach-day mood. Beer, local rum, rum and Coke, and Mauritian coffee have all been part of the experience. Drink sensibly, especially in the strong sun and on a moving boat. Water activities and alcohol do not mix well if you overdo it.

This final stop also gives you time to decide what kind of day you want. You can swim, sunbathe, take photographs, or simply enjoy lunch. If you dislike organized beach time, two hours may feel long. For most people, it is a welcome pause after the packed sightseeing schedule.

What the $100 price really buys

At $100 per person, the tour is good value if you want several experiences in one booking. The price covers the speedboat, guide, island visits, waterfall stop, snorkeling gear, snacks, lunch, and drinks. You also get six hours of transport and hosting, rather than paying separately for a boat trip, a BBQ, and several short visits.

The value is strongest for first-time visitors to Mauritius who want an overview of the southeast. You see famous Ile aux Cerfs, historic islands, a waterfall, marine life, and a beach lunch without arranging each part yourself.

The value is weaker if you want depth at one site. You will not spend a full morning snorkeling, hike around the waterfall, or devote hours to the lighthouse. You are paying for range and convenience.

Hotel pickup and drop-off are not included. You need to reach the jetty at the meeting point, next to the Mauritius flag. Large bags and luggage are not allowed, so bring only what you need for the water and sun.

Free cancellation is available up to 24 hours before the activity, and you can reserve now and pay later. The tour is offered in English and French. Pregnant women should not book this experience, and the speedboat ride may not suit anyone who dislikes rough movement.

The guides make a real difference

The boat crew shapes the mood of the day. Guides named in the feedback include Oliver, Rajiv, Rajesh, Wendel, Ranjeev, Derrick, Jeremy, Tony, Rhaiv, Christophe, and Irek. You may not get a particular guide, but the pattern is clear: the best crew members keep the boat organized, explain the route, spot wildlife, and help with photographs.

Jeremy was especially attentive to a solo participant, checking that she was comfortable and taking photos. Wendel was praised for finding dolphins, monkeys, turtles, and a barracuda. Oliver reportedly returned to look for dolphins after the first attempt failed. Those details matter because the day depends on quick decisions and good timing.

The commentary is not always equally detailed. If you want more information about the islands, ask direct questions in English or French. The guides generally keep the atmosphere informal, with music, jokes, and local drinks rather than a formal lecture.

Who should book this experience?

You should consider this trip if you want an active day with plenty of variety. It suits couples, families with older children, solo visitors, and anyone who prefers a small boat to a large cruise.

It is especially good for:

• First visits to Mauritius
• People who want dolphins, turtles, and snorkeling as possible highlights
• Visitors interested in both colonial history and beaches
• Families who appreciate lunch and equipment being arranged
• Solo visitors who want a social group and help with photographs
• Thrill seekers who enjoy a fast boat ride

You may want another option if you are pregnant, need a very calm boat, want a long snorkeling session, or prefer quiet sightseeing with little music and few scheduled stops. The boat is fast, the day is active, and the schedule leaves limited time at each early stop.

Should you book the five-island speedboat trip?

I would book it if you want the best broad introduction to Mauritius’ southeast coast in a single day. The combination of speedboat travel, the lighthouse, Grand Port history, swimming, wildlife searches, Ile aux Cerfs, and a generous beach lunch gives you a lot for $100.

Go in with sensible expectations. The waterfall is more about the river setting and monkeys than a dramatic cascade. The first island stops can feel rocky. Snorkeling gear may be basic, and no guide can promise dolphins or turtles.

Bring your own snorkel set if you have one, pack aqua shoes, keep your day bag small, and protect yourself from the sun. If you are happy with a quick-moving itinerary and a little salt spray, this is a strong choice. If you want one quiet island and hours of unhurried swimming, choose a slower, more focused outing instead.

FAQ

How long does the tour last?

The activity lasts six hours. It begins and ends at the jetty near Blue Alizé Catamaran Ile aux Cerfs in Trou d’Eau Douce.

Is the boat a catamaran or a speedboat?

It is a speedboat. The meeting point name includes Blue Alizé Catamaran Ile aux Cerfs, but this experience itself uses a speedboat.

Which places do you visit?

The route includes Ile aux Cerfs, Grand River South East Waterfall, Ile aux Fouquets, Ile de la Passe, Ile aux Aigrettes, and the Grand Port area for swimming and snorkeling.

Is lunch included?

Yes. A BBQ lunch is served at Ile aux Cerfs, and drinks and snacks are included. Vegetarian options are available, and vegan meals have also been provided.

Is snorkeling equipment provided?

Yes. Snorkeling gear is included. You may bring your own equipment if you prefer, since the quality and fit of shared gear can vary.

Can you see dolphins and turtles?

You may see dolphins and sea turtles, but sightings are not guaranteed. The guides look for marine life during the boat ride and snorkeling stops.

What should you bring?

Bring sunglasses, a sun hat, sunscreen, and a towel. Large bags and luggage are not allowed.