Northeast of Scarborough on the west coast of Tobago, the snorkeling at Castara offers access to the scenic Little Bay reef just offshore. While snorkeling the Little Bay reef, you may encounter cowfish, doctor fish, grunts, filefish, trunkfish, spotted moray eels and hawksbill turtles.
The shallow water reefs surrounding Tobago are very popular for snorkeling. These water are filled with great diversity of reefs, rock pillars, wrecks and extravagant undersea gardens filled with giant sea fans, whips and plumes. The reefs are home to over 300 different species of coral including staghorn, elkhorn, fire coral, brain coral and starlet coral. There are giant tube sponges that also attract numerous angelfish. Generally, there are moderate to strong currents at most snorkeling dive sites, so there are few options for moored snorkeling dive boats.
When considering a Tobago snorkeling trip, keep in mind that, for the Caribbean, there is a shocking change in water temperature with season. February and March are known for the coldest water temperatures (as low as 68F). With the rainy season starting in June, the best months for snorkeling are late April and May.
To reach Tobago snorkeling by air from Europe, fly into Arthur Napoleon Raymond Robinson International Airport (TAB) in Crown Point on the southwest point.
To reach Tobago snorkeling by air from North America, fly into Piarco International Airport (POS) on Trinidad located southeast of Port Of Spain. There is a twice-a-day ferry service (4 hours) and seacat service (2 hours) between Trinadad and Tobago.
Overall, Castara Bay is the 13th most popular snorkel dive spot of all 20 snorkeling dives in Tobago.