Photo copyright Steve Smithson, Emperor Divers.
The BBC recently ran a TV programme, 50 Things To Do Before You Die. Results were based on votes from viewers who were asked to choose the top 50 things they think everyone should do in their life. The number one experience wished for was "Swim with Dolphins"! Second came diving the Great Barrier Reef with whale-watching at number 4 and diving with sharks at number 5.