Ahead of the BBC’s new David Attenborough series Planet Blue II, we pick 10 trips that explore the oceans, from diving the Pacific’s ‘underwater Serengeti’ to reef conservation in Belize and kayaking in Komodo
Water worlds: top 10 marine adventure holidays worldwide

Published by Julian Worker
Julian was born in Leicester, attended school in Yorkshire, and university in Liverpool. He has been to 94 countries and territories and intends to make the 100 when travel is easier. He writes travel books, murder / mysteries and absurd fiction. His sense of humour is distilled from The Marx Brothers, Monty Python, Fawlty Towers, and Midsomer Murders. His latest book is about a Buddhist cat who tries to help his squirrel friend fly further from a children's slide. View more posts