Ancoras is a versatile dive site located in Lagos, Portugal, featuring a combination of natural reef topography and artificial structures. The site is notable for its archaeological value, containing artifacts dating back to the Roman era. Divers can explore a series of arches that define the underwater landscape. The site is suitable for beginners, with depths ranging from 5 to 18 metres and an average depth of 10 metres. Access is strictly by boat, and divers should remain aware of boat traffic in the area. Conditions are generally stable with mild currents, and water temperatures fluctuate between 15C and 19C throughout the year.

Martelo is a shallow dive site located off the coast of Lagos, Portugal. Reaching a maximum depth of 11 metres, the site is suitable for beginner divers. Access to the site is by boat, which is required due to the location. Divers should remain aware of boat traffic in the area. Conditions are generally calm, with mild currents reported. Water temperatures range from 15C in March to 19C during the summer months. The site offers a straightforward underwater experience for those looking to explore the coastal topography of the Algarve region.

Ponta da Piedade in Lagos is a limestone coastal site characterised by a labyrinth of sea arches, grottoes, and towering pillars. This marine site is suitable for intermediate snorkellers, offering depths ranging from 1 to 10 metres with an average of 3 metres. Access is available via both shore and boat, with a steep 182-step stone staircase leading to a small fishing anchorage. Conditions vary, with visibility typically between 5 and 15 metres. Be aware of strong currents, surf, and boat traffic in the area. Water temperatures fluctuate between 15C and 19C throughout the year. Facilities at the site include parking, toilets, a cafe, and guided tours.

Praia do Barranco do Martinho is the westernmost cove of the Ponta da Piedade headland in Lagos, Portugal. This site features a combination of reef and cave topography, suitable for intermediate snorkelers. Depths range from 1 to 15 metres, with an average of 7 metres. Access is available from both shore and boat. Conditions vary, with visibility typically between 5 and 20 metres and mild currents. Divers and snorkelers should be aware of potential hazards including boat traffic, cold water, jellyfish, overhead environments, rip currents, sea urchins, stonefish, and surge. Water temperatures fluctuate between 15C and 19C throughout the year.

Baixas de Armacao is a boat-access reef located off the Albufeira Coast. The site features depths ranging from 14 to 22 metres, with an average depth of 16 metres. Divers experience mild currents and visibility that varies between 10 and 30 metres. Due to the Atlantic location, water temperatures fluctuate between 15 and 19 degrees Celsius. The site is suitable for beginners, though boat support is required for all dives. Species recorded around this area include various wrasses, bream, and invertebrates such as cuttlefish, octopus, and crabs. Equipment rental is available for those who do not wish to travel with a full kit.

Mosh Wall is a marine wall and reef site in Lagos, Portugal, accessible only by boat. The wall structure begins at a depth of 12 metres and descends to 22 metres, with an average depth of 17 metres. Due to the site layout, it is typically explored over two separate dives. Divers should expect moderate currents and visibility ranging from 5 to 20 metres. Water temperatures fluctuate between 15C and 19C throughout the year. The site is suited for intermediate divers, and local facilities provide air fills, equipment rental, guided tours, and boat charters. Divers should be aware of sharp coral present on the reef.

Cortinas is a reef and wall site located off the coast of Lagos, Portugal. The site maintains a consistent depth of 16 metres, making it suitable for beginner divers looking to gain experience in deeper reef environments. Access is by boat only, and the site features mild currents. Visibility varies significantly between 5 and 20 metres, so carrying a torch is recommended to observe details along the wall. Water temperatures range from 15 to 19 degrees Celsius, necessitating adequate thermal protection. Divers should remain aware of potential low visibility and entanglement hazards during their descent.

Poço is a reef dive site located off the Albufeira Coast, Portugal. Accessible only by boat, the site features a reef structure reaching depths between 15 and 22 metres, with an average depth of 15 metres. Divers encounter mild currents and visibility ranging from 5 to 20 metres. The topography includes overhead sections such as caves and swim-throughs, requiring careful navigation and buoyancy control. Due to the presence of sea urchins and the technical nature of the overhead environment, this site is best suited for divers comfortable with these conditions. Guided tours are available to assist with navigation and site orientation.