Boat charters: Some companies limit park access, so before reserving, confirm the areas where you can explore. The perfectly suited Balboa 26 that we used for our trip came compliments of Pagan Charters (305-743-0090, www.florida keysbareboatchartercompany.com). Based in Marathon, Pagan Charters also charters a Catalina 30 and a 40-foot Island Gypsy trawler. Southwest Florida Yacht Charters (800-262-7939, www.swfyachts.com), based in Fort Myers, offers trawlers and a shoal-draft 32-foot Island Packet. In Islamorada, Treasure Harbor Marine (305-852-2458, www.treasureharbor.com) has a shoal-draft Watkins 25.