Today's high-end travellers want more from their luxury holiday than Egyptian cotton sheets turned down with a Belgian chocolate each night. They want to try something adventurous and experience something life-changing. Scuba diving ticks these boxes, talking travellers to a different world. Despite being a relatively expensive activity, diving has not entered the realms of luxury travel. Until recently, to dive the world's most pristine and remote coral reefs, consumers had to travel in groups of serious enthusiasts, perhaps on a three-star 'live-aboard' dive boat or stay in three-star accommodation on a remote beach. A growing number of luxury operators have seized on this gap in the market and are expanding their water sports offerings beyond wind surfing and jet skis. This article lists 10 great luxury diving experiences, with Lord Howe Island's Arajilla Resort and Spa coming in at number one.