Bahamas
On the small island of Bimini in the Bahamas, you can join boat safaris looking for pods of wild spotted dolphins. The trips last five or six hours and require a bit of stamina but they have an 80% success rate of getting people in the water with the dolphins.
www.wilddolphins.com
$119 for a single excursion (or around $1,200 for five days including accommodation at the quirky Bimini Big Game Club).
Google map: tinyurl.com/o2bhn2
Search Been there