Samoa
Volcanic-coast diving around Samoa's largest island, with lava tubes, canyons and wall sites, plus the wreck of the missionary ship John Williams V in the lagoon off Fagamalo.
Savai'i, Samoa's largest and highest island, offers diving shaped by its volcanic origin: lava tubes, canyons and steep walls along a quieter coastline. The island's single dive operation is based in Fagamalo on the north coast; its signature site is the wreck of the John Williams V, a London Missionary Society ship that hit the reef in December 1948 and now lies in the lagoon off the beach. Source: samoa.travel, Wikipedia (Fagamalo), PADI.