South of Grand Turk, the snorkeling at Big Sand Cay offers clear waters among coral heads. It is also known as Great Sand Cay and has the highest level of protection as a statutory sanctuary. This area is very popular with hawksbill turtles and green sea turtles. It is located 6 miles south of Salt Cay, and it is accessible by boat only from Salt Cay.
Grand Turk is located 70 miles southeast of Providenciales and there is no public ferry service.To reach the snorkeling on Turks and Caicos by air, fly into Providenciales International Airport (PLS) located in the middle of the island. To reach Grand Turk from Providenciales, you will need to fly on a domestic airline into Grand Turk McCartney airport (GDT) which takes about 30 minutes. The two inter-island airlines serving Grand Turk are interCaribbean and Caicos Express Airways.
Overall, Big Sand Cay is the 26th most popular snorkel dive spot of all 32 snorkeling dives in Turks And Caicos.