Sa Tuna — Costa Brava, Spain
The path leads to a cove you can only reach by swimming, walking, or paddling.
The cove out front sits directly on the Camí de Ronda, and the path continues to S'Eixugador, a neighboring beach that can only be reached on foot, by boat, or by kayak, with no road access at all. That makes for a genuinely private extension to any swim.