Key West balances its history with its water. Mornings are for snorkeling the reef or kayaking through mangrove channels; afternoons for wandering the museums and historic houses of Old Town. The Ernest Hemingway Home, the Harry S. Truman Little White House, and the Key West Butterfly and Nature Conservatory are the headline attractions, but smaller spots like the East Martello Museum and Fort Zachary Taylor reward a visit too. After dark, the nightly Sunset Celebration at Mallory Square is the island's signature ritual — part street fair, part communal moment of appreciation for living at the edge of the continent.