Mauritius offers several ways to spend time in the water: guided scuba dives, snorkelling outings by boat, an underwater submarine trip and public lagoon beaches. The choices are spread around the island rather than concentrated in one resort area. Pick the coast that fits the rest of your plans, then check the operator’s current meeting point, activity requirements and sea conditions before setting out. For public beaches, local guidance matters more than a general description of the lagoon.

North coast

The north combines dive centres with a submarine excursion and public lagoon beaches. The area includes beaches that suit swimmers and snorkellers, so a shore stop can work alongside a booked outing. A beach visit is not the same as a guided activity: check signs and current local advice before entering the water, and do not assume that equipment or supervision is provided.

For scuba training, guided recreational dives and technical diving, Dodo Divers works from a base in Calodyne and describes dive locations around Coin de Mire and the northern reefs. Where: Calodyne.

At Bain Bœuf, near Cap Malheureux, Just Diving offers underwater activities from snorkelling-style discovery with mask, fins and snorkel through to scuba diving. This range can suit someone deciding between a surface-level introduction and a dive, but the two activities have different requirements. Where: Cap Malheureux.

Panorama Divers is based in Grand Baie and offers guided dive trips for different experience levels, from newcomers to certified divers. Where: Grand Baie.

For a trip below the surface without scuba diving, Blue Safari Submarine runs an underwater excursion from Trou aux Biches to view reef and marine life. The operator’s described experience includes a boat transfer, briefing and submarine visit. Where: Trou aux Biches.

Along the north coast, Trou aux Biches Public Beach is a public shoreline by a calm lagoon, an area suited to snorkelling. Check local notices, ask about current swimming conditions and bring your own gear if you plan to snorkel. Where: Trou aux Biches.

Near Grand Baie, Pereybere Beach is another public beach on the north coast, where the calm lagoon beaches suit snorkelling. Conditions and facilities can vary, so check local advice before swimming and bring any equipment you need. Where: Grand Baie.

Mont Choisy Beach, at Morcellement Choisy, is a public shoreline on the northern coast. The north’s calm lagoon beaches suit snorkelling, but check local notices and current conditions before entering the water. Where: Morcellement Choisy.

East coast

The east is a boat-trip option rather than a cluster of dive schools. Johaness Cruises departs from Trou d’Eau Douce on speedboat and catamaran outings, with selected itineraries including time to swim and snorkel. Routes can include Île aux Cerfs and the Grand River South East waterfall, but not every cruise has the same stops. Read the exact itinerary and confirm what equipment, transfers and activities are included. Where: Trou d'Eau Douce.

Treat a snorkelling boat trip as an operator-led outing, not a guarantee that every stop will be suitable for every swimmer. If the selected cruise includes time on the water, follow the crew’s instructions and use the equipment as directed.

South-east coast

Blue Bay Marine Park is a protected marine area near Blue Bay and Mahébourg, where permitted activities include snorkelling and boat trips. This is a conservation area with rules, not an unrestricted swimming ground. Use authorised operators, avoid touching or standing on coral, and follow directions from park staff and boat crews. Where: Blue Bay.

A visit here is for observing marine life while respecting the habitat. If you are arranging a boat outing, confirm that the operator is authorised to work in the park and ask what the current rules require. Keep the visit low-impact and leave the reef undisturbed.

West coast

The west has several dive centres based around Flic en Flac. The centres offer scuba instruction and guided dives, and one also describes snorkelling-style excursions.

Exploration Sous-Marine offers introductory dives, guided outings and courses from its Flic en Flac base, and also describes guided snorkelling-style excursions. It is a choice to ask about if your group has different levels of comfort in the water. Where: Flic en Flac.

SeaUrchin Diving Center offers scuba training and guided dives for a range of experience levels, with boat access from the Flic en Flac area. Dive plans can depend on sea conditions, so check the arrangement directly before setting aside time for an outing. Where: Flic en Flac.

Choose an outing that fits

For a first underwater experience, compare the introductory options at the north- and west-coast centres with the submarine outing, rather than assuming that scuba, snorkelling and a boat excursion are interchangeable. Certified divers can ask about site choice and qualifications; snorkellers can check whether a trip is guided and whether equipment is supplied. Anyone choosing a public beach should make a separate decision based on current local signs and advice.

Before you go, confirm booking details, the meeting point, age or health requirements, what is included and the operator’s cancellation or rescheduling arrangements. Sea and weather conditions can affect activities, while protected areas may have additional rules. Keep to instructions from guides and park staff, avoid contact with coral and wildlife, and leave the shore and water as you found them. A flexible plan makes it easier to switch from an outing to a beach visit if the operator advises against going out.