The Blue Lagoon of Oludeniz, eight kilometres downhill from Hisaronu, is the headline image of the southern Turkish coast and the reason most travellers come to the area at all. A narrow sand spit closes off a sheltered inner pool of impossibly turquoise water against the open sea, with a long pebbled beach stretching east beneath the wall of Babadag mountain. Entry to the lagoon itself carries a small park fee; the public beach to either side is free.
In summer the lagoon is busy and the parasols are packed in tight, but the water is shallow, warm, and clean, and the snorkelling along the edges of the sand spit is among the best on this stretch of coast. Pedalos, kayaks and stand-up paddleboards are easy to rent at the beach. Out beyond the lagoon, the bay is the standard landing zone for the paragliders who launch from Babadag — there are few stranger experiences than swimming under a sky full of slowly descending canopies.