San Blas is a shallow lagoon system in Nayarit, Mexico, formed where a river meets the Pacific Ocean. The lagoon is separated from open ocean by a sandy barrier beach, creating protected water with minimal swell exposure. The coastline faces south toward the water, with dense mangrove forest to the north and east. Water conditions are characterized by very small waves and light swell, making wave riding secondary to wind conditions. Wind data shows minimal reliability (0.0%) with extremely low average wind speeds (3.2 knots), making this a marginal kitesurfing location. The shallow lagoon environment suits beginners when wind is available, offering minimal hazards from large waves or strong currents. However, navigation requires awareness of sandbars, sediment features near the river mouth, and vegetation. The best wind direction is from the east (side-shore), though consistent wind patterns are not established. This spot is primarily suitable for light-wind practice and leisure sessions rather than serious progression.