Octopus Reef in the Gemiler Island area features a combination of natural reef and artificial structures. The topography consists of large boulders set upon a sandy base, with an old cast iron pipe on the seabed acting as a navigation guide. Divers and snorkellers can expect depths ranging from 12 to 18 metres, with an average depth of 16 metres. Conditions vary, with visibility reaching up to 40 metres and moderate currents present. Entry is via the shore, and the site is suitable for beginners. Facilities available at the location include parking, toilets, showers, changing rooms, and a cafe.

Construction is a reef and wall site located in the Gemiler Island area of Turkey. The topography features a combination of reef and wall structures, with depths ranging from 18 to 25 metres. The site is suitable for beginner divers, who can explore shallower sections along the reef. Conditions are generally forgiving with visibility between 10 and 30 metres. Water temperatures fluctuate between 18 and 24 degrees Celsius throughout the year. While shore entry is possible, divers should exercise caution regarding the cave environment present at the site and avoid entering overhead structures without appropriate training. Maintain close contact with your group due to variable visibility.

Soğuksu Koyu is a distinctive snorkel site located in the Gemiler Island area, notable for the cold mountain spring water that seeps through the seabed into the Mediterranean Sea. This interaction between cold freshwater and warmer seawater creates a visible halocline, resulting in a shimmering effect throughout the water column. The site reaches depths of 2 to 10 metres and is suitable for beginners. Snorkellers can access the water from either the shore or by boat. Water temperatures vary between 18C and 28C, though the spring water can cause localized cold spots. Facilities at the site include a cafe and showers.

Blue Cave is a shallow cavern located 2000 metres from the shore of Gemiler Island. The site features depths between 5 and 8 metres, with an average depth of 6 metres, making it suitable for beginner divers. Visibility is consistently 30 metres, allowing sunlight to illuminate the interior. Access is by boat, and divers should note that while conditions inside the cave are mild, the entry point can experience stronger surface currents and surf. Divers should be cautious of sea urchins on rocky surfaces near the entrance and keep fins clear of the walls. Due to potential cold water from springs, adequate thermal protection is recommended.

Deve Plajı is a small beach located in the Gemiler Island area, characterised by black sand and volcanic rocks. The site offers shallow, calm waters with an average depth of 2 metres, reaching a maximum of 5 metres. It is suitable for beginners and snorkellers, with boat access required to reach the location. Conditions are generally mild, though visibility can vary between 5 and 15 metres. Water temperatures fluctuate throughout the year, ranging from 18°C in winter to 28°C in August. Facilities available at the site include showers and toilets. Divers and snorkellers should be aware of the presence of jellyfish and sea urchins in the area.

Kidrak is a shore-entry reef site located in the Gemiler Island area. The reef topography ranges from 12 to 18 metres in depth, with an average of 15 metres. Visibility is excellent, consistently reaching 30 metres. The site features overhead environments, including swim-throughs and wreck structures, requiring careful buoyancy control to avoid contact. Beginners should be aware of the shore break and rocks during entry and exit; waiting for a calm moment in the wave cycle is recommended. Facilities at the site include parking, toilets, showers, changing rooms, and a cafe. Typical dives last approximately 45 minutes.

Blue Cave is a natural sea cave located in the Gemiler Island area, accessible only by boat. The site is characterised by a white sandy bottom that reflects sunlight, creating a distinct blue glow within the cavern. Snorkellers can explore the cave and its rock formations at depths ranging from 2 to 7 metres. Conditions are generally suitable for beginners, with mild currents and visibility typically between 10 and 30 metres. Water temperatures fluctuate throughout the year, ranging from 18C in the cooler months to 29C in August. Hazards at this site include jellyfish, sharp coral, and stonefish.

Gemiler Island features an underwater archaeological park located in the channel between the island and the mainland. Snorkellers can explore submerged Byzantine ruins, including house foundations and staircases, resting at depths between 1 and 15 metres with an average of 8 metres. The site is accessible by boat and offers mild currents with visibility ranging from 15 to 30 metres. It is well-suited for beginners. Species recorded around this area include Indian Lionfish, Pufferfish, Turkish Wrasse, European Parrotfish, Lizardfish, Purple Sea Star, Goatfish, crabs, fireworms, White Seabream, snails, and sea cucumbers. Use caution near sharp coral structures while navigating the ruins.