Blue Bay Beach: complete guide to Mauritius's best snorkeling

Blue Bay Beach: the marine sanctuary of southern Mauritius

Blue Bay is an exceptional beach in every respect. Designated a protected marine park since 2000, this magnificent bay in southern Mauritius shelters the best-preserved corals on the entire island and marine life of breathtaking richness. It’s the only place in Mauritius where you can snorkel directly from the beach and observe such marine diversity: over 50 species of hard and soft coral, hundreds of fish species, green turtles, rays and even harmless nurse sharks in the deeper areas.

But Blue Bay isn’t just a paradise for divers and snorkelers. It’s also an excellent family beach, with a strikingly beautiful lagoon — the waters here are an intense blue-green that fully justifies the name. The fine white sand, crystal-clear waters and unspoiled natural setting make it one of the most photogenic beaches on the island.

The Blue Bay region sits on Mauritius’s southeast coast, a few kilometers from Mahebourg. The proximity of Mahebourg (5 km) guarantees easy access to amenities without the beach itself being overrun by commercial development. For snorkeling enthusiasts, our complete guide to snorkeling and diving in Mauritius compares Blue Bay with the island’s other spots.

At a glance
Where	Southeast coast, 5 km from Mahebourg and 15 km from SSR airport
Price	Free (beach and marine park); snorkeling/glass-bottom boat excursions cost extra
Time needed	Half a day for snorkeling, a full day with Mahebourg
Getting there	Car (20-25 min from the airport) or bus from Mahebourg
Best time	May to November for the best underwater visibility

How to get to Blue Bay

By car

Blue Bay is located about 45 kilometers southeast of Port-Louis and just 15 kilometers from SSR airport. It’s one of the easiest beaches to reach from the airport: take the B29 from the airport toward Plaine Magnien, then follow the signs to Blue Bay. The drive takes about 20 to 25 minutes from the airport.

From Port-Louis, take the M2 highway south to the Mahebourg exit, then follow the coast to Blue Bay. Allow 40 to 50 minutes.

A rental car is strongly recommended for exploring the southern region. Our guide to car rental in Mauritius will help you.

By bus

Regular buses connect Mahebourg to Blue Bay. From Mahebourg (linked to Port-Louis and the airport by bus), connections serve Blue Bay. The bus network is more convenient here than in some other southern regions.

Parking at Blue Bay

Free public parking exists at the entrance to the beach. It’s generally easy to find a spot on weekdays. On weekends and during Mauritian school holidays (July-August), the parking lot can fill up. In that case, informal spots exist along the main road.

Swimming at Blue Bay

A remarkable lagoon

Blue Bay’s lagoon is simply one of the most beautiful on the island of Mauritius. The waters are a remarkable intense blue, with a crystal clarity that lets you see the bottom several meters down even from the surface. Water temperature ranges from 25°C in the southern winter to 28-29°C in summer.

The depth increases gradually from the shore, with a shallow sandy zone 20 to 30 meters wide, followed by the start of the coral areas. Swimming is safe for children in the marked swimming zone.

Marine park protection

As a protected marine park, Blue Bay is subject to strict rules: it’s forbidden to break or touch corals, collect shells, feed fish or throw waste into the water. Boat anchoring is regulated. These protective measures have kept the corals in exceptional condition.

Snorkeling at Blue Bay: a unique experience in Mauritius

Blue Bay’s corals

Blue Bay is home to one of the most spectacular coral reefs in the southern hemisphere. Over 50 species of hard coral (acropora, brain coral, table coral) and soft coral (gorgonians, soft corals) form an underwater garden of extraordinary beauty and complexity. The corals are in better condition here than anywhere else in Mauritius, thanks to the marine park’s protection.

Marine life

Wildlife is abundant: yellow-tailed surgeonfish, parrotfish, boxfish, moray eels, lionfish, stingrays, green turtles (common in the bay), and even reef sharks and nurse sharks in the park’s deeper areas. Dolphins occasionally venture into the bay.

How to snorkel at Blue Bay

Snorkeling is possible directly from the beach — one of Blue Bay’s big advantages. Swimming from the shore toward the coral areas (about 50 to 100 meters), you’ll enter an extraordinary underwater world.

For more distant areas, or to reach the richest parts of the marine park, glass-bottom boat and transparent kayak excursions are available from the beach. These guided outings let you reach the best spots without excessive swimming effort. A dedicated Blue Bay snorkeling excursion with a guide and equipment provided is the ideal option for making the most of your experience.

For a glass-bottom boat outing specifically, book the Blue Bay glass-bottom boat excursion to see the corals without getting wet.

Glass-bottom boats

For those who don’t snorkel, glass-bottom boats offer a window onto the underwater world without having to get wet. These boats sail over the corals and let you observe marine life from the safety of the boat. Operators offer these outings from the beach.

Shade and beach setting

Blue Bay beach is lined with filao trees and a few palms that provide decent shade. Unlike some more exposed beaches in the south, Blue Bay has good vegetation cover along the shoreline.

The bay is relatively sheltered from prevailing winds, creating a calm, pleasant atmosphere. The overall setting is that of a natural, unspoiled tropical beach, free of large-scale development.

Facilities and services

Dining

Blue Bay village has a few restaurants and snack bars near the beach. The offering is more modest than in the major tourist areas of the north, but sufficient for a proper lunch. Vendors sell cold drinks and snacks on the beach, especially at weekends.

For a wider dining selection, Mahebourg is 5 kilometers away. Its Monday morning market is not-to-be-missed local experience.

Equipment and rentals

Operators on the beach offer snorkeling gear rental (mask, snorkel, fins), kayaks and pedal boats. Prices are reasonable. Lockers to keep your belongings safe may be available from local operators.

Toilets and showers

Public toilets and showers are available at the entrance to the beach. Showers let you rinse off after swimming and snorkeling.

Crowds and best time to visit

Season and weather

Blue Bay is a dry-season beach par excellence. The best conditions for snorkeling and swimming run from May to November, when the weather is sunny, underwater visibility is at its best and the water is calm. In the southern summer (November-April), rain can reduce underwater visibility and sometimes disrupt swimming.

Crowds

Blue Bay is known to Mauritian locals and travelers who do their research, but it remains less crowded than the northern beaches year-round. On weekends, local families come in numbers. On weekdays, the beach is relatively quiet.

In peak tourist season (July-August), crowds increase, but the size of the bay always allows you to find a quiet snorkeling spot.

Who Blue Bay is for

Snorkelers of all levels: Whether you’re a beginner or experienced, Blue Bay offers an unforgettable experience. Beginners can gradually venture further from shore, while experienced snorkelers can explore the marine park’s deeper areas. Our guide to snorkeling in Mauritius will prepare you.

Families with children: The calm, shallow lagoon is perfect for introducing kids to snorkeling. The abundant marine life delights the youngest visitors. For more ideas, our guide to family activities is a comprehensive resource.

Divers: Dive centers operate from Blue Bay and offer trips to the marine park’s deeper areas, reserved for certified divers.

Underwater photographers: The colorful corals and abundant wildlife make Blue Bay one of the best underwater photography spots on the island.

Where to stay nearby

Blue Bay has a few guesthouses and small seafront hotels. The neighboring village of Pointe d’Esny (1 km away) offers additional options in an unspoiled setting.

For a wider range of accommodations in southern Mauritius, check our guide to where to stay in Mauritius. Mahebourg, 5 km away, also offers more affordable options with excellent connections to Blue Bay.

Nearby activities

Pointe d’Esny

1 kilometer to the north, Pointe d’Esny beach is a quiet alternative with mangroves and an unspoiled atmosphere. It’s a great complement to Blue Bay.

Mahebourg and the waterfront

5 kilometers away, the town of Mahebourg is worth a visit: its Monday morning market is one of the most authentic on the island, the waterfront offers a pleasant promenade, and there are several fresh fish restaurants.

Ile aux Aigrettes

A few kilometers off the coast from Mahebourg, Ile aux Aigrettes is a nature reserve managed by the Mauritian Wildlife Foundation. Guided tours let you see endemic Mauritian species being brought back from the brink.

Organized snorkeling excursion

For the best experience of the marine park, an organized snorkeling outing at Blue Bay with an expert guide is the option to choose. Equipment is provided and the guide shows you the best spots.

Practical tips

Reef-safe sunscreen: In a protected marine park, it’s essential to use a mineral-filter sunscreen (zinc oxide or titanium dioxide) free of oxybenzone and octinoxate. These chemical filters are harmful to corals. Many Mauritian shops now stock “reef safe” sunscreens.

Water shoes: Water shoes are strongly recommended for entering the water — coral areas can be slippery and sharp.

Best time to visit: Underwater visibility is at its best in the morning (8am-11am). Avoid the afternoon hours when the light is less favorable and the water sometimes stirred up by passing boats.

Snorkel and mask: Bring your own gear if possible for a better fit. Rental masks may not perfectly fit your face.

Respect the marine park: Never touch the corals, even with fins on. A single brush can kill a piece of coral that took years to form. Stay horizontal while swimming over the corals.

Blue Bay beach FAQ

Is Blue Bay better for diving or snorkeling? Both are excellent, but Blue Bay particularly shines for snorkeling, since the corals start at shallow depth, accessible without a tank. Diving lets you reach the marine park’s deeper areas.

Are there sharks at Blue Bay? Reef sharks (nurse sharks and lagoon sharks) frequent the marine park’s deeper areas, but they’re harmless to humans. Swimming areas close to shore pose no danger.

Can you snorkel without a guide at Blue Bay? Yes, independent snorkeling is possible and popular. However, a guided outing lets you reach the best spots more quickly and learn more about the park’s marine life.

Is Blue Bay suitable for children who can’t swim? The shallow zone near the shore is safe for non-swimming children. For snorkeling, children need to be able to keep their head underwater and swim at a basic level. Flotation vests are available for rent.

What’s the difference between Blue Bay and Pointe d’Esny? Blue Bay is the main beach with the marine park and tourist services. Pointe d’Esny is an adjacent beach, smaller and quieter, with mangroves. The two are complementary.

Is it best to book a snorkeling excursion in advance? In high season (July-August), yes, as spots with the most sought-after guides fill up fast. In low season, it’s often possible to book on the spot the same day.

How much time should you allow for visiting Blue Bay? Half a day is enough for snorkeling and swimming. Allow a full day if you combine the visit with Mahebourg and its Monday market.

The Blue Bay marine park in detail

The Blue Bay marine park was officially created in 2000 to protect this bay’s exceptional coral reef. It covers about 353 hectares of lagoon and reef, ranked among the most valuable marine areas in Mauritius.

The park is managed by the Ministry of Environment of Mauritius with support from international conservation organizations. Mooring buoys have been installed for boats to prevent anchors from damaging the corals. Commercial fishing is banned within the park’s boundaries.

Scientists who have studied the Blue Bay reef have recorded over 50 species of coral building structures of remarkable complexity. Table corals (acropora) sometimes reach several meters in diameter. Brain corals (Diploria and Colpophyllia) form perfect spheres 50 cm to 1 meter across. Soft corals (Sarcophyton, Sinularia) sway like trees in the breeze.

This diversity of coral structures creates a multitude of micro-habitats that allow an exceptionally diverse array of wildlife to coexist in a relatively small space.

Diving at Blue Bay: the extra dimension

Beyond snorkeling, scuba diving opens up an additional world at Blue Bay. The marine park’s deeper areas (8 to 25 meters) reveal even more developed corals, large gorgonians and sponges, and marine life that’s more wary and larger.

Dive centers operate from Blue Bay and Mahebourg. The most interesting dive sites include:

The marine park’s outer barrier, with vertical coral walls dropping to 25-30 meters. The Pointe d’Esny drop-offs, where corals plunge steeply into the depths. The shipwrecks around Mahebourg — remnants of 19th-century naval battles — which are artificial reefs colonized by dense marine life.

To book a guided diving or snorkeling outing, a dedicated Blue Bay snorkeling excursion is available with an expert guide and equipment provided. Our complete guide to snorkeling and diving in Mauritius lists all the dive clubs and access conditions.

Blue Bay and the Mahebourg area

Blue Bay beach can’t be fully separated from Mahebourg, its hub town 5 kilometers away. Mahebourg is one of the most interesting towns in Mauritius from a historical and cultural standpoint.

The Mahebourg market, held every Monday morning, is one of the most authentic on the island. You’ll find vegetables, spices, fresh fish, tropical fruit and local crafts in a colorful, festive atmosphere. If you visit Blue Bay on a Sunday, plan to stay for Monday’s market.

The Mahebourg National History Museum is also worth a visit. Housed in a former colonial mansion, it traces the island’s maritime and naval history with collections of objects recovered from the wrecks littering the bottom of the bay — including those of the 1810 Battle of Cap Malheureux, where the English challenged the French for control of the island.

The Mahebourg waterfront promenade, a long seafront walk with views of the southeastern islands (Ile aux Aigrettes, Ilot Mouchoir Rouge), is a pleasant place for an evening stroll.

A day trip from Blue Bay

Blue Bay is a perfect base for a day exploring southeast Mauritius. Here’s an ideal itinerary:

7:30am — Arrive at Blue Bay before the crowds. Morning snorkeling in the best visibility conditions. 10am — Move over to Pointe d’Esny beach for a quieter break. 12pm — Lunch at a restaurant in Mahebourg or at the market (on Mondays). 2pm — Visit the National Museum or stroll along the Mahebourg waterfront. 3:30pm — Return to Blue Bay for one last swim or a glass-bottom boat excursion. 5pm — Head back to your accommodation.

This itinerary can be rounded out with a visit to Ile aux Aigrettes (nature reserve), reachable by boat from Mahebourg, if you want to add a naturalist dimension to your day in the south.

Accommodation around Blue Bay: all the options

Accommodation in and around Blue Bay spans several price ranges. A few guesthouses and small hotels exist right at Blue Bay for travelers who want to be within walking distance of the beach.

For families and couples looking for a bit more comfort, the Pointe d’Esny area (1 km) offers private villas for rent in a quiet residential setting, some with lagoon views. For tighter budgets, Mahebourg (5 km) offers affordable guesthouses with easy access to Blue Bay by taxi or bus.

Our guide to where to stay in Mauritius covers the whole southeast with detailed recommendations for every type of traveler and every budget.

Blue Bay compared with the island’s other snorkeling spots

Beach / spot	Vibe	Snorkeling	Ideal for
Blue Bay	Protected marine park, family-friendly	Excellent, accessible from shore	Family snorkeling, beginners and experienced alike
Trou aux Biches	Touristy, lively	Good, but less preserved corals	Easy snorkeling with plenty of services
Ile aux Cerfs	Very busy, boat access	Decent around the island	Combined day trip with beach and activities
Coin de Mire	Wild, accessible by excursion	Very good, less accessible	Advanced snorkeling, full-day outing

This comparison confirms Blue Bay’s special place: it’s the only place in Mauritius where you step directly into a protected marine park from the sand. For a broader overview, our guide to snorkeling and diving in Mauritius details every spot on the island.

Blue Bay as a day trip or an organized excursion?

Independent travelers with a mask and snorkel can easily enjoy Blue Bay on their own: snorkeling is accessible directly from the beach without a boat. For beginners, or those who want to make the most of their time, a guided outing remains preferable: it includes equipment, access to the marine park’s best spots and explanations about the wildlife you observe. Allow a good half-day for either option, and a full day if you combine it with a visit to Mahebourg.