For today’s Friday Photo, I’ve decided to post the most popular photo from my 2013 Instagr.am feed. (If you’re on Instagr.am follow me, @TuiSnider, and say hi. I will definitely follow you back!) Here’s the story behind the picture: My husband and I were on a tour of the Caribbean island, St. Maarten, when our group decided to stop by the seaside. As we stepped out of the van, the driver warned us that part of the area was clothing optional, so if we were offended by this, we should pay close attention to the signs. I’d never been to…