Along with Biscayne National Park , we failed to get to Dry Tortugas National Park on our first attempt two years ago. The Dry Tortugas are a set of islands about 70 miles off the coast of Key West, Florida. Islands means ferry, and it turns out you have to book the ferry months ahead of time. Lesson learned. We started planning our return trip a year ahead of time as a joint vacation with my sister's family. I was in charge of getting us down there, and my brother-in-law Marc took charge of getting us to the island (booking the ferry) and keeping us on the island for a few days (camping). There is one RV park in Key West, and it's as expensive and hard to book as you'd imagine, so we parked the RV at the campground in Everglades National Park, rented a 15 passenger van in Miami, and booked a hotel in Key West. The ferry departs early, and we had an extra early wake up call because we were camping. We had to have all of our gear at the ferry, inspected and ready to load by ...