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

The most memorable part of this Mauritius day trip is the undersea walk, where you follow a guided route through the lagoon with fish and coral around you. The speedboat ride adds a little excitement, while Ile aux Cerfs supplies the white sand, palms, and clear water that brought you here.

I like the convenient hotel pickup and the fact that the group is capped at 12 people. I also like the lunch setup at Islet Margenie, where grilled chicken, fish, salad, beer, wine, soft drinks, water, and local drinks are served near the sea. The main drawback is that Ile aux Cerfs can feel commercial and crowded, and some beach comforts, such as loungers or umbrellas, may cost extra.

Key points to know before booking

• The undersea walk is the main paid-style activity: Plan on about 15 minutes underwater, with fish and coral around you.
• The speedboat is part of the fun: Expect quick runs across the east coast lagoon and lively turns on the return.
• Lunch includes drinks: The barbecue meal covers grilled chicken, fish, salad, soft drinks, water, beer, wine, and local drinks.
• The waterfall visit is scenic but brief: Grand River South East is viewed from the boat, with little time for a long stop.
• The day runs about seven to eight hours: Hotel pickup begins around 8:30 a.m., though your exact pickup time depends on where you stay.
• Bring a towel and spare clothes: You will swim, ride a speedboat, and take part in a water-based activity.

A fast start from Trou d’Eau Douce

Your day begins with pickup from your Mauritius hotel and a drive to Trou d’Eau Douce, a fishing village on the east coast. The listed start time is 8:30 a.m., but pickup times can vary by location, so keep your morning flexible.

Trou d’Eau Douce is the launch point for the boat portion. Once you arrive, you board a speedboat and head toward Ile aux Cerfs across the east coast lagoon. The short transfer is not simply a ride from point A to point B. You get open water, views of the coast, and the first taste of the day’s faster pace.

The start can feel a little untidy. Boats may be loading at the same time for different activities, and one part of the group may change boats before the main program gets moving. I would not book this expecting a polished cruise terminal experience. It is more of a busy local watersports operation.

Still, the small maximum group size of 12 matters here. A guide can usually keep a closer eye on the group than on a large excursion with several dozen people. The exact guide name is not provided, but a certified guide accompanies the trip.

Ile aux Cerfs: beautiful, busy, and easy to enjoy

Ile aux Cerfs is the visual centerpiece of the day. As the boat approaches, you see white beaches, palm trees, and turquoise lagoon water. The setting is tailor-made for swimming, sunbathing, and photos.

You get roughly four hours around Ile aux Cerfs, though the day’s activities divide that time. You may swim in the lagoon, sit on the sand, walk around, or take part in optional activities such as parasailing or a glass-bottom boat trip. Snorkeling is presented as part of the possible lagoon fun, but one account of the day found that snorkeling was not available without paying extra. Ask your guide what is included before setting off if snorkeling is important to you.

This is also where expectations matter. Ile aux Cerfs is not an untouched desert island. It is a popular beach stop, and some sections operate like a resort beach. Sunbeds and shades may cost extra, which can be an unpleasant surprise if you expect every comfort to be part of the package.

You can avoid some of that pressure by treating the island as a place to swim and walk rather than as a private beach club. Bring your own towel, keep a spare set of clothes in a dry bag, and do not assume that a lounger or umbrella is included.

The island works best for you if you want a social beach day with several choices. It works less well if you want solitude, long independent walks, or a quiet snorkeling reef with no additional fees.

The undersea walk is the trip’s signature moment

The undersea walking session is the most distinctive part of this outing. You wear the necessary equipment and walk on the seabed inside the reef area while looking at fish and lagoon life. The activity lasts about 15 minutes, according to the details provided.

You do not need to be a strong swimmer to appreciate the idea, but you should be comfortable in water and able to follow the guide’s instructions. The sensation is unusual: your feet are on the bottom, yet you are surrounded by water and marine life. It gives you a close look at the reef without requiring a long snorkeling session.

The quality of this part can depend on the group size and instructor attention. One account described a single instructor moving between participants, which made a few people nervous. If you feel unsure underwater, tell the staff before you begin and stay close to the guide.

Children are not automatically included in the undersea walk. The activity depends on parental decisions, and children pay only for their speedboat seat. If you are booking for a family, confirm the arrangements before paying and make sure everyone understands that the adult package and child price work differently.

The short duration is another point to keep in mind. Fifteen minutes can feel worthwhile because the experience is unusual, but it is not a full underwater expedition. Think of it as a memorable sample of the reef, not the main focus of an entire day.

A barbecue lunch at Islet Margenie

Around noon, the boat takes you to Islet Margenie for lunch. This is one of the better parts of the schedule because you have time to eat, sit by the water, and swim afterward rather than rushing through a plate between activities.

The meal includes grilled chicken, fish, salad, and other barbecue items. Vegetarian food is available if you request it when booking. You should also report food allergies or illness in advance, since the meal is prepared as part of a group outing.

Drinks are included, with water, soft drinks, beer, wine, and local alcoholic drinks listed as part of the package. That changes the price calculation. At $139.37 per person, this is not a cheap beach transfer, but the cost covers hotel transport, the boat, the undersea walk, lunch, drinks, and the waterfall visit. Buying those parts separately could quickly add up, especially once transport and a boat ride are included.

The alcohol service deserves a practical note. The meal can become a relaxed social break, but you still have more boat travel afterward. Pace yourself, drink water, and remember that the return ride includes fast movement and turns.

Lunch is also one of the strongest reasons to choose this tour instead of arranging only a transfer to Ile aux Cerfs. You get a fixed meal in a scenic setting and do not need to search for food during the busiest part of the day.

Grand River South East Waterfall from the boat

The return route includes Grand River South East Waterfall, often called GRSE Waterfall. The river is described as the longest in Mauritius, and it reaches the sea through a wooded river mouth that you approach by boat.

The trip may give you views of monkeys in the trees and fruit bats resting high above the river. These sightings are not guaranteed, so keep your eyes open but do not treat them as promised highlights.

This stop is mainly a boat view rather than a long land visit. The listed time is about one hour, but much of that includes the boat ride and the return toward shore. You may get close enough for photographs, yet you should not expect a long waterfall walk or a quiet picnic beside the falls.

The speedboat makes this section more enjoyable than a slow transfer. The return may include fast runs and sharp spins, which some people find thrilling. If you are prone to motion sickness or prefer calm water, sit where the crew recommends and let them know before the ride begins.

Is the $139.37 price good value?

The value depends on what you would otherwise arrange yourself. The price is high for a simple beach day, but it includes several moving parts:

• Hotel pickup and return transport
• Speedboat travel from Trou d’Eau Douce
• Time at Ile aux Cerfs
• Undersea walking
• Barbecue lunch
• Unlimited listed alcoholic and non-alcoholic drinks
• A visit to Grand River South East Waterfall
• A small group of no more than 12 people

If your priority is simply lying on the sand, you may find the package more than you need. The island itself is accessible through other boat trips, and optional beach activities may still cost extra.

If you want one organized day with transport, food, a water activity, and a scenic boat route, the price is easier to justify. You avoid arranging separate taxis, boat operators, and lunch stops. The small group also gives the package more value than a large coach-and-boat operation.

Keep in mind that the tour is often booked about 20 days ahead. That suggests you should reserve early during popular travel periods, especially if your hotel is outside the immediate Trou d’Eau Douce area.

Who will enjoy this full-day outing?

I would recommend this experience to couples, friends, and families with older children who want variety. You get beach time, a fast boat, a short underwater activity, a cooked meal, and a waterfall route in one day.

It suits you particularly well if:

• You like an active day with several short experiences
• You want hotel pickup instead of arranging your own transport
• You enjoy speedboats and do not mind quick turns
• You want drinks included with lunch
• You are happy sharing the day with a small group
• You prefer guided arrangements over planning every detail yourself

I would think twice if you want a quiet island with no commercial facilities. The beach may require payment for some comforts, and the schedule can involve boat changes and a little confusion at the start.

This is also not ideal if you need a long, serious snorkeling session. The undersea walk is brief, and snorkeling conditions or access may vary. Ask what is included on your date if reef time is your top reason for booking.

Practical details that make the day easier

Wear swimwear under light clothes, and pack a towel plus spare dry clothes. You should also protect your phone and other valuables from spray during the speedboat ride.

The trip requires at least two people per booking. Most people can take part, but the water activities mean you should consider your own comfort and physical condition before booking.

The tour operates only in suitable weather. If a cyclone or torrential rainfall alert leads the operator to cancel, you can receive a full refund. You can also cancel for a full refund up to 24 hours before the local start time. Cancellations or changes inside that window are not refunded or accepted.

The tour is offered with a mobile ticket, and confirmation is provided when you book. Pickup is available from your Mauritius hotel, but the precise time depends on your location.

Should you book the Ile aux Cerfs speedboat tour?

Book it if you want a busy but varied day and value having transport, lunch, drinks, and activities handled in one package. The undersea walk and the barbecue lunch are the strongest reasons to choose it, while the speedboat ride gives the day energy.

Skip it if your dream is an empty beach, a long snorkeling session, or a carefully paced private boat trip. Ile aux Cerfs can feel commercial, the opening boat arrangements may be confusing, and the waterfall visit is more of a scenic pass-by than a full excursion.

For most people, this is a solid way to see several east coast highlights in one day. Go with realistic expectations, bring your own towel and spare clothes, and confirm the details of snorkeling, children’s participation, and beach extras before you set out.

FAQ

Where does the tour begin?

The experience includes pickup from your Mauritius hotel. You then travel to Trou d’Eau Douce, a fishing village on the east coast, where you board the speedboat.

What time does the tour start?

The listed start time is 8:30 a.m. Your exact pickup time may vary depending on the location of your hotel.

How long does the experience last?

The full outing lasts approximately seven to eight hours.

Is lunch included?

Yes. Lunch is a freshly prepared barbecue meal with grilled chicken, fish, salad, and other items. A vegetarian option is available if requested in advance.

Are drinks included?

Yes. The package includes water, soft drinks, beer, wine, and local alcoholic drinks.

Is the undersea walk included for children?

Children are not automatically included in the undersea walking activity. It depends on their parents, and children pay only for their speedboat seat.

What happens if bad weather cancels the tour?

The experience requires good weather. If the operator cancels because of a cyclone, torrential rainfall, or other poor conditions, you will be offered another date or a full refund.