Tigertail Beach + Sand Dollar Island — Wade Across the Lagoon, Walk the Sandbar, and Find Out Why Marco Hides Its Best Beach

Marco Island is mostly condos and private beach. But on the north end, Tigertail Beach Park sits across a shallow lagoon from Sand Dollar Island — a mile of empty Gulf sandbar with shells, rookeries, and nobody. Time the low tide right and you wade across in 15 minutes. Most condo guests never make it.