Tersane Island, the largest island in the Gulf of Fethiye, offers a shallow dive and snorkel experience within a sheltered bay. The site features submerged Ottoman shipyard ruins, including sunken boathouses and ancient foundations located just below the surface. Divers and snorkellers can explore these structures at depths ranging from 1 to 8 metres, with an average depth of 4 metres. The area is suitable for beginners, with mild currents and visibility typically between 10 and 30 metres. Access is by boat only. The habitat supports a variety of regional reef fish and invertebrates. Facilities at the island include a cafe.

Yassıca Adaları is a cluster of small islands located in the Gemiler Island area. The site features shallow reef and seagrass habitats with an average depth of one metre, reaching up to two metres. Access is exclusively by boat, as the site is situated 15 kilometres from the shore. Conditions are generally mild with visibility ranging from 10 to 25 metres. The area is suitable for beginners and offers a high-quality snorkelling experience. Divers and snorkellers should be aware of sharp coral present in the area. Typical dive times are approximately 60 minutes.

Iblis Reef is a seamount located in the Gemiler Island area, featuring a combination of reef and wall topography. Divers typically navigate around the seamount, exploring terraced rock formations and walls that descend to a maximum depth of 36 metres. The site is suited for advanced divers due to the potential for strong currents and the depth profile. Boat access is required for this site, with dives averaging 45 minutes. Visibility ranges from 10 to 30 metres, and water temperatures fluctuate between 18C and 22C throughout the year. Divers should remain aware of the deep water and current conditions during their descent and ascent.

Tectonic Cove, located in the Gemiler Island Area, features a distinct wall and pinnacle topography. Divers navigate a series of stepped blocks formed by rockfall, which create a navigable gully to the rear. The site reaches depths between 5 and 30 metres, with an average depth of 15 metres. Access is strictly by boat. Conditions are generally mild with visibility ranging from 10 to 30 metres. Species recorded around this area include Indian Lionfish, pufferfish, European Parrotfish, wrasses, Turkish Wrasse, Purple Sea Star, goatfish, lizardfish, crabs, White Seabream, fireworms, snails, and sea cucumbers. Divers should be aware of sharp coral hazards. Typical dive duration is 50 minutes.

Big Reef, also known as Dalyan Reef, is a large wedge-shaped reef located 500 metres from the shore near Gemiler Island. The site features a reef top at 10 to 12 metres, with a wall dropping to 40 metres at the south-east corner. Divers typically experience moderate currents, making this an intermediate-level drift dive. The topography includes rocky stacks and varying depths, with an average dive depth of 16 metres. Access is by boat only. Visibility ranges from 10 to 25 metres, and the site is suitable for night diving. Divers should remain aware of boat traffic and the potential for reduced visibility.

Aladin's Cavern is a reef dive located off the coast of Fethiye, Turkey. Accessible by boat, the site features depths ranging from 20 to 30 metres. Divers typically encounter mild currents, though conditions can vary, and visibility fluctuates between 10 and 30 metres. The site is suitable for beginners who wish to remain in shallower sections, while more experienced divers can explore the deeper parts of the reef. Divers should remain alert for potential entanglement risks near the cave structures and monitor their position closely, as currents can occasionally strengthen. Water temperatures remain between 22 and 28 degrees Celsius throughout the year.

Small Reef and Three Tunnels is a boat-accessible site located in the Gemiler Island area. The reef top sits at 15 metres, with a wall dropping to 30 metres. The site features three distinct tunnels formed by wall fractures, located at depths of 20 to 30 metres. Divers should note the top tunnel is narrow. The topography includes rocky outcrops and a cement wreck located halfway back toward the bay. Conditions are generally mild with visibility ranging from 15 to 40 metres. Species recorded around this area include Indian Lionfish, pufferfish, Turkish Wrasse, European Parrotfish, wrasses, lizardfish, fireworms, white seabream, crabs, snails, and sea cucumbers.

Dalyan Bay Drop Off is a wall and reef site located in the Gemiler Island area. The site features a maximum depth of 30 metres with an average depth of 16 metres, making it suitable for beginners. Divers access the site by boat, encountering mild currents and visibility ranging from 10 to 25 metres. Water temperatures fluctuate between 18C and 23C throughout the year. The site is also well-suited for night diving, with typical dives lasting around 35 minutes. Hazards include boat traffic and sharp coral. This location provides a straightforward underwater environment for those developing their diving skills.