Many hotels rent windsurfers to their guests, but if yours doesn't have a watersports concession stand, head for Key Biscayne. Sailboards Miami, Rickenbacker Causeway, Key Biscayne (tel. 305/361-SAIL; www.sailboardsmiami.com), operates out of two big yellow trucks on Windsurfer Beach, the most popular (though our pick for best is Hobie Beach) windsurfing spot in the city. For those who've never ridden a board but want to try it, they offer a 2-hour lesson for $69 that's guaranteed to turn you into a wave warrior or you get your money back. After that, you can rent a board for $25 to $30 an hour. If you want to make a day of it, a 10-hour prepaid card costs $180. These cards require you to prepay, but they also reduce the price by about $70 for the day. You can use the card year-round, until the time on it runs out. Open Tuesday through Sunday from 10am to 5:30pm. Make your first right after the tollbooth (at the beginning of the causeway -- you can't miss it) to find the outfitters. They also rent kayaks.
