Blue Bay Snorkeling Tour in Mauritius
A blue bay snorkeling tour drops you straight into Blue Bay Marine Park, a protected lagoon on the southeast coast of Mauritius where staghorn and brain corals sit under water rarely deeper than five metres. Boats leave from the jetty at Pointe d'Esny or nearby Mahébourg and combine glass-bottom viewing over the coral gardens with two or three in-water stops among parrotfish, sergeant majors and clownfish, often passing Île des Deux Cocos on the way out. Guided blue bay snorkeling tour tours have run here since the reserve was gazetted in 1997, and mask, snorkel and fins are handed out at the boarding point.
A single Porites colony at the seaward edge of the Blue Bay lagoon has been building itself for roughly a thousand years. It measures about five metres across. Almost every Blue Bay snorkeling tour steers toward it at some point, and most visitors remember little else with the same clarity.
The coral sits in shallow water at the mouth of a 353-hectare lagoon in the south-east of Mauritius, three kilometres south of the old harbour town of Mahébourg.
Protection arrived late, then quickly. The bay was declared a fishing reserve in 1997, gazetted as a marine park in June 2000 under the Fisheries and Marine Resources Act, and listed in 2008 as a Ramsar wetland of international importance. Anchoring, spearfishing and jet skis were pushed out of the core zone. Licensed pirogues, glass-bottom boats and blue bay snorkeling tour tours were pushed in. Surveys inside the park boundary have recorded roughly 38 coral species and more than 70 species of reef fish, from parrotfish and sergeant majors to the occasional hawksbill turtle.
That inventory explains the modern catalogue. Operators sell the same water under many names — locally as an excursion plongée en apnée, abroad as a blue bay snorkeling trip out to the drop-off, or as a blue bay marine park snorkeling tour that stays inside the buoyed zone, or as the blue bay snorkeling & cocktails 3 islands speedboat tour that adds Île aux Aigrettes, Île aux Deux Cocos and Île de la Passe. Even the shortest blue bay snorkeling tour tour rarely leaves the sheltered water between the beach and the barrier reef. The labels differ. The lagoon does not.
Geography does the rest. A barrier reef seals the mouth of the bay, holding depths between half a metre and about five and a half, so the swell breaks a kilometre offshore and the sand stays put. Île de la Passe, the low fortified islet guarding the channel, was the pivot of the Battle of Grand Port in August 1810 — the only French naval victory inscribed on the Arc de Triomphe. Fishermen worked these shallows for generations before conservation law reached them. Today the same channel carries a Blue Bay snorkeling tour past gun emplacements and seagrass beds, while the thousand-year-old coral keeps growing at the pace it always has: a centimetre or so a year, indifferent to the traffic above it.
1 hr
