More ideas from Matt
"Go kayaking (or canoeing) at night in the bioluminescent bay in Puerto Rico. It literally glows at night!!" - adding this to my list

Go kayaking (or canoeing) at night in the bioluminescent bay in Puerto Rico. It literally glows at night. go off the main island, if you go out of the bay it's a beach that you can only get to by kayak or swimming.