Not much of a story here. We went on a boat tour of the Na Pali Coast in Kauai, Hawaii. Part of the tour is snorkeling. While I was out, I felt little stings. When I got back to the boat, I found that I was covered in these little welts. I asked and the guides told me they were stinging plankton – a minor annoyance that would disappear in a couple hours. They were right. Nothing that a Mai Tai couldn’t fix.