The gentle clap of paddles against the water and the tenor thrumming of jet-ski motors drift from Adventure Water Sports. On waverunners, diminutive sailboats, and kayaks, patrons spread out across the surf and around Estero Island, their eyes peeled for dolphins and other fauna at all times. The shoreline falls back in quiet bays and estuaries, where little fish dart among tangled knots of mangrove roots. Instructors certified by the United States Coast Guard demonstrate the operation of vessels, lead tours, and knock down sand castles lacking proper fire exits.
