Post Office Bay is a historic site on Floreana Island in the Galapagos. It was once a spot where whalers would leave letters for loved ones or other ships passing by. Today, visitors can continue the tradition by leaving postcards and taking ones that are addressed to a location near their home. The site is also a great place to snorkel with sea turtles and rays. Be sure to bring a waterproof bag to protect your belongings during the boat ride to the island.