Castaway Island Preserve Winter Salt Marsh Overlooks & Boardwalk Nature Walks

About this adventure

Bordering the Intracoastal Waterway along San Pablo Road, Castaway Island Preserve protects more than 300 acres of pristine coastal salt marsh, maritime hammock, and tidal creek ecosystems. The preserve is an exceptional family walking destination, featuring a completely ADA-accessible, elevated wooden boardwalk that extends gracefully over shimmering marshlands. Along the path, colorful, interactive interpretive signs teach children about fiddler crab colonies, marsh snails, manatee migrations, and coastal wading birds like snowy egrets and roseate spoonbills. Two scenic observation platforms equipped with mounted spotting viewers offer sweeping panoramas across the Intracoastal Waterway where kids can watch passing tugboats and motor yachts. The adjoining education center offers hands-on nature discovery exhibits, while a sheltered canoe and kayak launch invites families to paddle peaceful tidal tributaries on calm winter afternoons. Family Experience & Accessibility: • Stroller Accessibility: Outstanding accessibility featuring wide, level wooden boardwalks and paved perimeter loop trails perfect for strollers and wagons of all sizes. • Nursing & Rest Spots: Covered marsh overlooks with built-in wooden bench seating, plus clean public restrooms with changing counters at the education center pavilion. • Age Suitability: Perfect for all ages, from infants riding in strollers to active elementary school children eager to spot coastal wildlife. • Sensory Tips: Cool, refreshing coastal breezes and gentle rippling tides provide a soothing outdoor ambiance; elevated railings ensure safety for toddlers observing tidal flats below.