Kayaking day-tours in the Kekova area make a wonderful, low-impact way to appreciate the eerie seascapes. They have the further advantage of allowing you to approach the shoreline, and the Batık Şehir in particular, much closer than the glass-bottomed cruise boats, and also to use narrow, shallow channels off-limits to larger craft. So long as your head is covered and you bring enough water, you’ll tolerate all but the hottest summer days, even wrapped inside a life vest.
The principal operators are BT Adventure and Dragoman in Kaş. Trips may begin with a motorized tow from Üçağız to the starting point of your choice, for example Tersane; outings can be as long or short as stamina allows. The typical cost, including a transfer from Kaş to Üçağız and a picnic lunch, is €30 per person.