Fener Koyu is a boat dive on the south side of Dana Island that works well for training runs and fuller reef dives. The site starts in shallow water, then moves into a wall and rocky reef with two open caves and pockets that hold fish. It suits divers who want more shape than a flat reef, with a longer boat transfer from Boğsak and a profile that asks for steady buoyancy as depth builds. Expect groupers, moray eels, octopus, rays and sunfish around the rocky sections.