Mauritius is best known for its beaches and luxury resorts. But beneath the surface lie coral gardens, volcanic reefs, reef fish in dazzling abundance and plenty of opportunities for snorkelling.
Like many tropical destinations, the island hasn’t escaped environmental pressures. Coral bleaching, cyclone damage and historical reef degradation have affected some areas, and experienced visitors may notice certain lagoons and reefs are not as healthy as they once were.
Yet despite these challenges, snorkelling in Mauritius is a rewarding experience, particularly for travellers who choose the right locations and venture out with knowledgeable local operators.
That’s where we come in. In this Mauritius travel guide, we’ll help you make an informed decision for your holiday – whether that’s a combination of calm lagoons and small bays for the whole family, or boat-trip excursions to explore areas where marine life remains particularly varied.
Then, when you’re ready to travel, speak with one of our Travel Specialists, who can recommend the best snorkelling spots in Mauritius based on where you’re staying.
In this Mauritius snorkelling guide:
– Best Snorkelling Spots in Mauritius
– What Marine Life Can You See?
– Reef Conservation and What to Be Aware Of
– Snorkelling Safety in Mauritius
– Best Time for Snorkelling in Mauritius
Best Snorkelling Spots in Mauritius
Blue Bay Marine Park
Marine species: Parrotfish, clownfish, barracudas, turtles
Reef types: Patch reefs, fringing reefs
Best for: Casual & beginner snorkellers, families
Of all the best snorkelling spots in Mauritius, Blue Bay Marine Park is among the island’s most rewarding underwater experiences. Located just off the southeast coast near photogenic Mahebourg, its pellucid waters reveal table and brain corals that shape the seascape.
As you drift gently along, keep your eyes peeled for hawksbill sea turtles that patrol the phanerogamic plant meadows. They’re instrumental in preventing fast-growing sponges from dominating corals. And, as they’re critically endangered, it’s essential to choose an ethical local tour operator that actively supports their conservation, as we do on every itinerary.
Top tip: Opt for a morning excursion for best visibility and calmest water conditions.
Trou aux Biches
Marine species: Green & hawksbill turtles, butterflyfish
Reef types: Fringing reefs, patch reefs, barrier reef sections
Best for: Beginner & intermediate snorkellers, families
Calm conditions, a gentle beach entry and shallow waters extending offshore – Trou aux Biches is a great choice for your Mauritius snorkelling trip. It’s located along the sheltered northwest coast, around 200—300 metres from the 1,500-metre-long beach of the same name.
Around the scattered coral heads, colourful butterflyfish weave between the reef, while schools of disc-shaped Moorish idols or active grazers such as convict tangs regularly glide through the lagoon. The setting here feels relaxed, though the diversity of marine life often surprises first-time visitors, proving you don’t need to venture far from shore to discover a variety of marine life.
Pointe d’Esny
Marine species: Picasso triggerfish, butterflyfish, moray eels
Reef types: Offshore barrier coral reef
Best for: Independent, adventurous snorkellers
A quieter alternative to Blue Bay, without compromising on the quality of the underwater scenery, is Pointe d’Esny. Situated just 1.4 kilometres north, its broad, shallow lagoon is shielded by an offshore barrier reef, keeping the water calm and wonderfully clear.
Seagrass beds support juvenile fish and rays, while the coral attracts species including the unusual trumpetfish, whose elongated body can grow up to 75 centimetres in length. With fewer visitors than neighbouring spots, it’s a good option if you’re looking to escape the crowds.
Did you know? Pointe d’Esny was named after Claude d’Esny, a geographer and engineer.
Flic en Flac
Marine species: Butterflyfish, moray eels, filefish
Reef types: Fringing coral reef
Best for: Beginner snorkellers, families
Stretching 300 metres wide along the west coast, Flic en Flac combines an accessible fringing reef with calm, sheltered conditions to create an enjoyable snorkelling experience. While coral health varies between different sections of the reef, there’s still plenty of marine life to discover, such as the hypnotic angelfish that darts amongst corals and feeds on sponges or algae.
The lagoon is particularly prolific during the austral winter, from May to October, when the coastline is protected from the prevailing trade winds. If you’re staying on the west coast, it’s one of the most convenient places to enjoy a memorable snorkel without travelling far.
Pereybere Beach
Marine species: Turtles, parrotfish, sergeant major fish, angelfish
Reef types: Fringing reef system, patch & barrier reef structures
Best for: Beginner & intermediate snorkellers
Pereybere Beach is a popular location for snorkelling in Mauritius. Around three kilometres north of Grand Baie, it houses a reef system where you can observe the Mauritian clownfish protecting a kaleidoscope of sea anemones. The endemic Mascarene species is identifiable by its striking black body, bright orange-yellow fins and broad white bars.
This is also one of the island’s best places to spot both green and hawksbill turtles. Add it to your Mauritius beach holiday itinerary, and you’ll have a chance of spotting the marine reptiles in their natural habitat. May to December is when Mauritius is cooler and drier.
Top tip: Spend time scanning the seagrass and reef edges, where the turtles often feed.
What Marine Life Can You See?
While you’re snorkelling in Mauritius, expect encounters with numerous Indo-Pacific marine life. Whether it’s the abundant reef fish, hard and soft corals, or – if you’re lucky enough – sea turtles, every plunge offers the chance to discover something different beneath the surface. There are around 430 different recorded creatures, over 300 species of fish and more than 200 types of coral to discover. For a breadth of sightings, tailor your Mauritius wildlife holiday with multiple snorkelling spots.
Reef Conservation and What to Be Aware Of
Coral bleaching, powerful cyclones and other environmental pressures have affected some reef systems, so protected areas such as Blue Bay Marine Park provide important habitats for marine life. By using licensed local operators, you help support higher environmental standards and responsible tourism practices. Also, be sure to avoid touching coral, use reef-safe sunscreen and never feed marine life, as even small actions can disrupt fragile ecosystems. Organisations like the Mauritius Wildlife Foundation work to protect these valuable habitats.
Snorkelling Safety in Mauritius
Although the sheltered lagoons often appear calm, conditions can change quickly, particularly near reef passes where strong currents present a genuine hazard. For this reason, we recommend joining a guided excursion with a reputable, licensed operator. Avoid swimming beyond the lagoon, follow local safety advice and consider fins or a buoyancy aid if you’re less confident in water. If there are strong winds or heavy swell, wait until conditions improve. This is the same for scuba diving. For more information, discover our Mauritius scuba diving guide.
Best Time for Snorkelling in Mauritius
One of the joys of snorkelling in Mauritius is that it can be done throughout the year. During the austral winter (May—October), calmer seas in the west provide clear visibility, while slightly cooler waters create comfortable conditions. The austral summer (November—April) brings warmer seas of around 27–28°C and increased marine activity, although the east may have rougher conditions. But, whatever the season, morning excursions ensure the best experience.
If you’re hoping to explore beyond Mauritius itself, our guide, the five reasons to visit Rodrigues Island, highlights another destination where you can discover coastal landscapes and opportunities for snorkelling.
Plan Your Mauritius Snorkelling Holiday
Now, having read our Mauritius snorkelling guide, you should be in a much better position to decide what’s right for your tailor-made holiday to the island. Speak with one of our Travel Specialists to arrange your personalised experience, and get excited for what’s to come next.
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