Sykia is not quite a beach - it is a sea cave the roof of which has collapsed. As a result, a cave has formed with an almost round shape and a "hole" in the roof from which the sky is seen. Inside there is a small corner of pebbles and stones resembling a miniature beach strip. The cave is accessible only by boat and is usually part of the boat trips to Kleftiko as both are very close.
The cruise boats and yachts cannot pass through the cave opening, so the crew brings smaller inflatable boats to transfer tourists inside. The water within the cave has transparent green-blue color but it is deep and cold.