This very small island, a two-hour flight northeast of Sydney, sits in the Tasman Sea, at the crossroads of five major ocean currents, including the warm East Australian Current. This World Heritage-listed islet has abundant marine life, rare coral and crystal-clear waters. With only 400 visitors are allowed at any one time, meaning you’re unlikely to be diving among a crowd. There are more than 60 world-class sites a short boat ride from shore. 

Diving on the Lord Howe Island is a seasonal activity, so plan to dive the island September to May.