Thanks! Yeah it was an awesome trip. Typically sharks are not dangerous unless they're feeding (which is normally at night) or they've been cornered. I've swum with sharks a lot in the past, I even once got into the shark tank at seaworld in Jakarta (man that was a long time ago) so I don't really have any reservations about swimming with them. As long as you don't antagonise them and give them their space you're fine :)