There are no chain hotels on Marco Island other than the large Marriott and Hilton properties, along Crescent Beach on the island's southwestern corner. Century 21 First Southern Trust (tel. 800/523-0069 or 239/394-7653; fax 239/394-8048; www.c21marco.com) is one of the largest agents representing rental-property owners.
As elsewhere in South Florida, the high season here is from mid-December to mid-April. Rates drop precipitously in the off season.