Stone Island is where locals come on weekends, and it's a wonderful adventure for visitors—a short trip to a side of Mazatlán that seems worlds away. Stone Island is really a long peninsula and has 16 km (10 mi) of unspoiled sand fronting a coconut plantation and an adjacent village nestled in greenery. There's plenty of space for everyone, although most folks pack the northern end, where bands and boom boxes blare music, restaurants sell seafood, and outfitters rent water-sports gear. There's horseback riding, too. Tour operators sell party-boat trips for $35 and up, but inexpensive water taxis cross the same channel with departures nearly every 15 minutes from dawn to sunset (save your ticket for the return). You can catch them at two small piers: one near the Pacífico Brewery, the other at La Paz ferry terminal.