Dive Antigua   Rex Halcyon Cove Hotel , Dickenson Bay tel 268/462-3483, fax 462-7787. The longest-established and best-known dive operation on the island, based on the northwest coast, though prices are normally a little higher than most of the others. They offer a glass-bottom boat to take snorkellers out to the reef.

Dockyard Divers Nelson's Dockyard tel 268/460-1178, fax 460-1179. Decent-sized dive shop (and the only outfit in the English Harbour area offering snorkelling tours) that lays on diving trips around the south and west coasts.

Jolly Dive Jolly Harbour Marina tel 268/462-8305. Second-oldest dive shop in Antigua and very popular with guests at the big, local hotels; look elsewhere if you want to go out in a small group.

Octopus Divers English Harbour tel 268/460-6286, fax 463-8528, . Reputable outfit with one of the most comfortable dive boats on the south coast, and some good-value hotel/diving package deals from time to time - check their website for details.