If your teen dreams of hoisting sails and navigating by stars, crew-based expeditions are the headline act. Picture 40–60-foot monohulls or catamarans where students rotate through skipper, navigator, and chef roles—learning teamwork at every tack. Routes range from 12-day island loops to immersive three-week odysseys that weave through St. Lucia, Martinique, and the Grenadines. Daily rhythms blend sail training, marine science projects, and shore excursions for freshly baked baguettes or waterfall treks.