By Gwen Filosa Miami Herald Miami—So you’ve made it to Key West on your cruise or arrived for a day trip and have a limited amount of time to explore this tiny tropical island before you pull out for your next stop. You’ve got options. Take a trip on the water to catch some sun and ocean breezes. See some history. Tour museums. Visit some butterflies. You can always just grab a cocktail and wander the Duval Sreet corridor and side streets downtown soaking up the sun, sights and shops. But for the more adventurous, here’s a list of the best things to do in Key West so you don’t miss the boat. 1. Duval Street World famous Duval Street is where the party starts. Duval awaits visitors with plenty of bars, live music, restaurants, art galleries, hotels and guesthouses and shops selling clothing —from high-end island attire to $5 …