Robin Williams swam with Dolphins, did a whole documentary on it, fascinating and funny at the same time.
I'm messing (a bit), I know some people genuinely get into it.
'Dolphins' by Fred Neil is one of my favourite songs ever, he sacked off his excellent music career to go and work in a dolphin sanctuary, that's commitment.
Most people just turn up, bother the Dolphins for an hour and then fuck off, glad it's ticked off and never think about it again.
The dolphins themselves probably just find it annoying that these gap yah bells turn up to tickle them and then fuck off again, not like the captive dolphins see the profit from it. Lots of sea life type centres also seem to have very dubious ethical practices with regards to welfare.
Not into bucket lists as a whole, makes you feel like a tit for not having done all these pre-decided 'awesome' things, like you have to want to do it or you're not living your life to the full. Horseshit IMO. So Groundskeeper Willie, you have lived mate and don't let anyone say otherwise! Also loads of them involve lots of money to do, any millionaire could probably tick it off in a week, doesn't make them better than anybody.