Daedalus Reef (also known as Abu Kizan) is a 400-meter-long and 100-meter-wide (1,310–330 ft) standalone reef in the Egyptian Red Sea situated about 90 kilometers from Marsa Alam. There is a small artificial island in the center of the reef, which hosts a lighthouse constructed in 1863 and rebuilt in 1931. Daedalus reef is a well-known place for diving because of good chances to see pelagic fish, such as hammerhead sharks, and an abundance of corals. In the high season one can find many dive safari boats staying overnight, anchored to the reef.