Cala dels Birros is a reef site located within a marine reserve in Spain, near Alicante. This cove offers a shallow environment with depths ranging from 2 to 10 metres, averaging 6 metres, making it well-suited for beginners and snorkellers. Access is via the shore, and conditions generally feature mild currents with visibility between 10 and 20 metres. Water temperatures fluctuate seasonally, ranging from 15C in winter to 26C in August. Divers and snorkellers should be aware of potential hazards including jellyfish, sharp coral, and stonefish. Local facilities include guided tours, air fills, equipment rental, a cafe, and boat charter services.

La Nao is a marine dive site in Spain featuring a reef and cave system. The topography is defined by arches and an underwater trail. Divers can expect depths ranging from 5 to 12 metres, with an average depth of 8 metres. The site is located 500 metres from the shore and requires boat access. Conditions are generally suitable for beginners, with mild currents and visibility typically between 10 and 15 metres. Water temperatures fluctuate seasonally from 15C in winter to 26C in August. Night diving is permitted at this location. Facilities available include parking, toilets, showers, changing rooms, air fills, equipment rental, and guided tours.

Tabarca is a marine reserve featuring a combination of natural reef and artificial reef structures. Located 9 metres from the shore, the site offers shallow depths ranging from 1 to 10 metres, with an average of 5 metres. Divers and snorkellers can expect mild currents and visibility between 10 and 25 metres. Marine life recorded here includes very common bream and snails, alongside common wrasses, white seabream, two-banded seabream, and tompot blenny. Less frequently, divers may encounter Mediterranean moray, Turkish wrasse, Cratena slug, striped red mullet, painted comber, sea star, Mediterranean cardinalfish, and Madeira rockfish. Access is via boat, and the site is suitable for beginners. Hazards include boat traffic and sea urchins.

Escull Roig is a reef site distinguished by the reddish colour of the islet, which extends into the underwater topography. This site is suitable for beginners, with an average depth of 10 metres and a maximum depth of 13 metres. Divers typically spend 50 minutes exploring the area. Conditions include mild currents and visibility ranging from 3 to 10 metres. Access to the site is by boat only, located 10 kilometres from the shore. Facilities available at the associated dive centre include parking, toilets, showers, changing rooms, a rinse station, air fills, equipment rental, and boat charter services. Divers should be aware of sharp coral present at the site.

La Llosa is a varied marine site in Spain featuring a reef, wall, and drop-off topography. The site includes cave structures, making it suitable for intermediate divers. Depths range from 4 to 30 metres, with visibility typically between 10 and 25 metres. Divers may encounter mild currents during their 45-minute dives. Access is available via both shore and boat entries. Due to the presence of caves and significant depth, divers should be mindful of overhead environments and depth limits. Water temperatures fluctuate between 15C and 20C throughout the year.

Cala dels Birros is a marine reserve featuring a combination of rocky reefs and dense Posidonia seagrass meadows. The site is suitable for beginners, with depths ranging from 2 to 13 metres and an average depth of 7 metres. Visibility varies significantly between 5 and 25 metres, while currents remain mild. Entry is possible from both the shore and by boat. Divers and snorkellers should be aware of boat traffic in the area. Facilities available at the site include parking, toilets, showers, changing rooms, a rinse station, air fills, equipment rental, a cafe, first aid, a dive shop, boat charters, and guided tours.

Escull Negre is a reef site located 9000 metres from the shore in Spain, featuring an islet surrounded by a Posidonia meadow. The site is suitable for beginners, with depths ranging from 2 to 14 metres and an average depth of 8 metres. Divers encounter common species such as Turkish wrasse, various wrasses, bream, two-banded seabream, white seabream, and tompot blenny. Less frequently, Mediterranean moray, Cratena slug, Madeira rockfish, sea star, Mediterranean cardinalfish, painted comber, striped red mullet, and flat crab are recorded. Visibility varies between 5 and 20 metres, and currents are mild. Access is by boat only. Hazards include an overhead environment and sharp coral.

Arrecifes Artificiales consists of four square, tall artificial structures located 6000 metres offshore from Alicante. This site is designed for intermediate divers and requires boat access. The depth ranges from 20 to 25 metres, with an average of 23 metres. Divers can expect mild currents and visibility between 10 and 30 metres. Marine life recorded at the site includes very common bream, common Turkish wrasse, wrasses, two-banded seabream, white seabream, and tompot blenny. Less frequently, divers may encounter Mediterranean moray, Cratena slug, Madeira rockfish, striped red mullet, sea stars, Mediterranean cardinalfish, painted comber, and flat crab. Water temperatures fluctuate between 15C and 22C throughout the year.