Mesmerizing Ile aux Cerf: Speed Boat, GRSE, Lunch & Undersea walk (Full Day)

Sun, sea, rum, and a little underwater magic. This full-day outing combines a fast speedboat ride, white-sand beaches, an undersea walk, barbecue lunch, drinks, and the Grand River South East waterfall. I especially like the small maximum group of 12 and the fact that hotel pickup and return are included. The biggest draw is the mix of easy beach time with a memorable undersea walk rather than another day spent only on a boat.

The main caution is that Ile aux Cerfs can feel commercial and busy, especially around the beach areas with paid sunbeds and umbrellas. The opening boat arrangements can also feel a little untidy, since different groups may be switching boats for different activities. At about $139.37 per person, this is good value if you want several experiences in one day, but less appealing if you only want a quiet beach.

Key points at a glance

• A 15-minute undersea walk takes you through a coral reef area with fish and sea plants.
• A speedboat connects the day’s main stops, including Trou d’Eau Douce, Ile aux Cerfs, Islet Margenie, and Grand River South East.
• The barbecue lunch includes drinks, with grilled chicken, fish, salad, soft drinks, water, beer, wine, and local rum.
• The group is capped at 12 people, giving the guide more room to manage transfers and activities.
• The waterfall visit is viewed from the boat, with possible sightings of monkeys and fruit bats along the riverbanks.
• Children do not automatically receive the undersea walk, and child pricing covers only the speedboat seat.

Starting in Trou d’Eau Douce at 8:30

Your day begins with pickup from your hotel anywhere on Mauritius. The exact pickup time can vary by location, so do not treat 8:30 am as a guaranteed door-to-door time unless the operator confirms it for your accommodation.

The drive takes you to Trou d’Eau Douce, a fishing village on the east coast. This is the launching point for the speedboat portion of the day. The transfer is included, which matters on Mauritius because reaching the east coast from another part of the island can take time and public transport may not fit neatly with a boat schedule.

Once you reach the village, you meet the certified guide and board the boat. The early part of the morning may involve organizing people between boats, particularly if some participants have booked other water activities. One account describes this stage as a bit of organized chaos. That is useful to know, since the day may not begin with the polished calm of a private charter.

Still, the small group limit helps. With no more than 12 people, the guide has a better chance of keeping everyone together, explaining where to go, and managing the changes between activities. I would arrive ready with your swimwear already under your clothes, since changing at the first boat point may be awkward.

Speeding across the east coast lagoon

The ride from Trou d’Eau Douce to Ile aux Cerfs is one of the strongest parts of the experience. The speedboat moves through clear lagoon water, with palms, pale beaches, and open views around you. It is not simply transport. The boat ride gives the day its sense of motion and adds a little excitement before the slower beach hours begin.

The speedboat also returns you between several stops, so you are not spending the entire day on one crowded beach. That variety is a real advantage for the price. You get a coastal ride, an island visit, an undersea activity, a meal, and a river excursion without arranging separate bookings.

The boat can be lively and fast, including sharp turns on some sections. If you prefer a calm cruise, this may feel more energetic than relaxing. Keep loose items secure and bring a spare change of clothes, since spray is possible and the tour specifically advises you to carry extra clothing and your own towel.

Ile aux Cerfs: beautiful, but not completely quiet

Ile aux Cerfs delivers the postcard setting promised by the name: white sand, palms, and turquoise water. You have time to swim, sunbathe, explore, or simply sit by the lagoon. The beach period lasts about four hours, though some of that time is used for the undersea walk and the move to lunch.

This is the part of the day best suited to people who want a flexible schedule. You are not pushed from one attraction to the next every few minutes. After the organized activities, you can choose your own pace and enjoy the water.

The trade-off is that the island is not a deserted patch of sand. One account found the main beach commercial, with sunbeds and shade costing extra. Another described the island as pleasant but not especially remarkable compared with truly remote tropical beaches. I would come here for the combination of activities, not for solitude.

Snorkeling may also disappoint if you expect it to be included everywhere. The supplied details indicate that snorkeling is available in the lagoon, but one account says proper snorkeling required an additional payment. Ask your guide exactly what is included before setting off, especially if snorkeling is your main reason for booking.

The undersea walk: the day’s most unusual activity

The undersea walk is the clearest reason to choose this outing over a standard island cruise. You walk on the seabed inside a coral reef area while looking at fish and marine plant life. The activity lasts about 15 minutes, so it is a short introduction rather than a long underwater session.

For many people, that is enough. You get the strange, memorable feeling of walking below the surface without needing to swim through open water. The water around you becomes the main view, and the coral garden provides a different experience from ordinary beach swimming.

You should also set realistic expectations. This is a group activity, not a private guided tour. One account noted that a single instructor was handling several people in the water, which made some participants nervous. If you are uneasy in the sea, tell the guide before entering and pay close attention to the instructions.

The undersea walk is not included for children automatically. The information says it depends on the parents, while child pricing covers only the speedboat seat. This makes the tour less straightforward for families than the headline description might suggest. Confirm the arrangements for every child before booking.

Bring your own towel and spare clothes. You should also tell the operator about food allergies or any illness in advance. These are small preparations, but they can make the water activities much easier.

Islet Margenie barbecue lunch and unlimited drinks

Around noon, the boat takes you to Islet Margenie for lunch. The meal is freshly prepared barbecue food, with grilled chicken, fish, salad, and other items. Vegetarian food is available if requested ahead of time.

The setting is part of the appeal. You eat near the beach with views across the water, rather than stopping at an ordinary restaurant inland. After lunch, there is time to swim and enjoy the shore. One especially positive account praised the generous meal, the relaxed time after eating, and the chance to have a drink before returning to the water.

The drink package includes soft drinks, water, beer, wine, and local rum. The word unlimited is important here, so this is more than a single included beverage with lunch. Still, use good judgment before the speedboat ride and the undersea activity. Alcohol and fast boats are not an ideal combination for everyone.

The meal adds considerable value to the $139.37 price. If you paid separately for transport, a boat trip, a marine activity, lunch, and drinks, the total could rise quickly. The value is strongest when you plan to use all parts of the day. If you do not drink alcohol, or if you would rather spend the day quietly on one beach, the package may feel less worthwhile.

Grand River South East waterfall by boat

On the return journey, the speedboat travels toward Grand River South East, usually called GRSE. This is the longest river in Mauritius, and its mouth leads to a waterfall that can be reached by boat.

The river section gives you a change of scenery after the bright open lagoon. The boat moves along the riverbanks toward the falls, where you may spot monkeys moving through the older trees. Mauritian fruit bats may also be resting high in the branches.

The stop is mainly a viewing trip from the boat. Do not expect a long walk to the waterfall or a quiet picnic beside it. One account felt that the ride moved too quickly and did not allow enough time to stop and watch wildlife. That criticism is fair. The waterfall is a worthwhile addition, but it is a scenic pass rather than a full river excursion.

The return boat ride may include fast speeds and sharp spins. If you enjoy an energetic finish, this will be fun. If you suffer from motion sickness, sit where the ride feels most stable and avoid overdoing the rum at lunch.

What the $139.37 price really covers

At $139.37 per person, this is not a budget beach transfer. It is a bundled full-day activity. The price includes hotel pickup and return, speedboat transport, the island visit, the undersea walk, barbecue lunch, unlimited alcoholic and non-alcoholic drinks, and the GRSE waterfall stop.

The package makes the most sense for you if you want variety and convenience. You avoid arranging separate transport to Trou d’Eau Douce, finding a boat operator, organizing lunch, and negotiating activity costs on the beach. The group cap of 12 is another useful feature, since it should feel more personal than a large excursion boat.

The value is weaker if you mainly want a free beach day. Ile aux Cerfs has areas where shade and sunbeds cost extra, and some activities may require additional payment. You may also find the schedule too structured if you prefer to stay in one place.

The rating of 4.1 from 22 ratings suggests a generally positive but not flawless experience. The strongest praise centers on the undersea walk, the barbecue, the speedboat, and reliable hotel transfers. The recurring concerns are the early boat organization, the commercial feel of parts of Ile aux Cerfs, limited time at the waterfall, and uneven expectations around snorkeling.

Who will enjoy this Mauritius day trip?

I would recommend it most to first-time visitors who want to see several east-coast highlights in one outing. It works well for couples, small groups of friends, and active families who like switching between swimming, boat rides, wildlife viewing, and a short marine activity.

It also suits you if you value convenience. Hotel pickup removes much of the planning, while the included meal and drinks keep the day simple. The small group size is a good middle ground between a private tour and a large boat excursion.

I would hesitate if you want a remote island, long snorkeling time, or a slow wildlife trip. The main beach can feel busy, the undersea walk is brief, and the waterfall section may pass quickly. Children also need extra checking because their price and undersea participation are handled differently.

Book at least 24 hours ahead if your plans are firm. Free cancellation is available until 24 hours before the start time. Poor weather can also cancel the trip, in which case you are offered another date or a full refund. Cyclone or torrential rain alerts are specifically covered by the operator’s refund policy.

Should you book the Ile aux Cerfs speedboat tour?

Book this tour if you want a packed east-coast day with a short undersea walk, a proper barbecue lunch, unlimited drinks, and a lively speedboat ride. Those are the parts most likely to make the day memorable, and the included hotel transfer adds real convenience.

Skip it if your dream is an empty beach or a long, quiet snorkeling session. You should also look elsewhere if you dislike fast boat rides, commercial beach areas, or group activity changes.

For the right person, the strength is not one perfect stop. It is the mix: Trou d’Eau Douce, the lagoon, Ile aux Cerfs, the reef, Islet Margenie, and GRSE in one manageable day. Go with practical expectations, bring a towel and spare clothes, confirm children’s activities and any extra beach charges, and you will know exactly what you are paying for.

FAQ

Where does the tour begin?

The tour begins with hotel pickup in Mauritius, followed by transport to Trou d’Eau Douce on the east coast. The listed start time is 8:30 am, but pickup time may vary by location.

How long does the full experience last?

The excursion lasts approximately seven to eight hours.

Is hotel pickup included?

Yes. Round-trip transfers from your Mauritius hotel are included, with pickup available from accommodations across the island.

How many people can join the tour?

The tour has a maximum of 12 participants.

What is included in the lunch?

The barbecue lunch includes grilled chicken, fish, salad, and other food. A vegetarian option is available if requested in advance.

What drinks are included?

Included drinks are soft drinks, water, beer, wine, and local rum. The package states that alcoholic and non-alcoholic drinks are unlimited.

Is the undersea walk included for children?

Children do not automatically receive the undersea walk. Participation depends on the parents, and children are charged only for their speedboat seat.

Should I bring anything with me?

Bring your own towel and spare clothes. You should also provide information about any food allergies or illness before the tour.

What happens if the weather is bad?

The experience requires good weather. If the operator cancels because of poor weather, you can choose another date or receive a full refund. You can also cancel for a full refund up to 24 hours before the start time.