Praia do Castelo on the Albufeira Coast is a reef site named for its distinctive castle-like rock formation. The area features numerous small satellite coves and inlets, with rocky outcrops providing shelter for marine life. Snorkellers can explore depths ranging from 2 to 5 metres, with an average depth of 3 metres. Access is via the shore, and the site is suitable for beginners. Conditions vary, with visibility typically between 5 and 15 metres and mild currents, though strong currents can occur. Water temperatures range from 15°C to 20°C, often feeling cool outside the peak summer months. Facilities including toilets and showers are available on-site.

Praia do Evaristo on the Albufeira Coast is a rocky reef site characterised by a shoreline cluttered with boulders. The rocky bottom extends from the shore into the bay, creating a varied underwater topography. Snorkellers can explore depths ranging from 1 to 8 metres, with an average depth of 4 metres. Conditions are generally suitable for intermediate snorkellers, featuring mild currents and visibility typically between 10 and 20 metres. Water temperatures fluctuate between 15C and 20C throughout the year. Access is via the shore, and the site is supported by facilities including parking, toilets, showers, a rinse station, and a cafe.

Praia da Coelha is a high-walled cove on the Albufeira Coast that offers shelter from the wind. This reef site is suitable for beginners, with depths ranging from 2 to 8 metres and an average depth of 4 metres. Divers and snorkellers can access the site from the shore, with the western end near the natural arch providing the most interesting topography. Visibility varies between 5 and 20 metres, and currents are generally mild, though strong currents can occur. Species recorded around this area include crabs, cuttlefish, octopus, various sea slugs, and wrasses. Facilities at the site include parking, toilets, showers, and a cafe.

Manuel Lourenço is a rocky reef site located along the Albufeira Coast. The topography features an intricate rocky platform on the eastern side, creating a complex habitat for intertidal life. Divers and snorkellers can explore depths ranging from 2 to 10 metres, with an average depth of 5 metres. Access is via the shore, and the site is suitable for intermediate divers. Conditions are variable, with visibility typically between 5 and 15 metres and mild currents. Water temperatures fluctuate between 15C and 20C throughout the year. Facilities available at the site include parking, toilets, and showers.

Praia da Ponta Pequena is a reef and cave site located 130 metres off the Albufeira coast. The topography features a natural arch and a sea cave with an eye in the ceiling. Depths range from 1 to 10 metres, with an average of 5 metres. Access is by boat, and the site is suitable for advanced divers due to moderate currents, surge, and surf conditions. Visibility varies between 5 and 20 metres, and water temperatures fluctuate from 15C to 20C throughout the year. Typical dives last approximately 45 minutes. The site is also accessible for snorkelling, which holds a rating of 3 out of 5.

Praia de São Rafael in the Santa Eulália area offers a distinct snorkeling experience featuring underwater arches and rock formations known as Ponte Pequena and Ninho das Andorinhas. The site consists of reef and cave topography at depths ranging from 1 to 5 metres, with an average depth of 3 metres. Shore access is available, though snorkelers should be aware of moderate currents and surf conditions. Visibility typically fluctuates between 5 and 15 metres. Water temperatures remain cool, ranging from 15°C to 20°C throughout the year. Due to potential temperature drops caused by northerly winds, a wetsuit is recommended for extended sessions. Facilities including parking, toilets, and showers are provided on-site.

Arriefes is a mixed natural and artificial reef located off the coast of the Santa Eulália Area. The site features varied topography across depths ranging from 8 to 16 metres, making it suitable for beginner divers. Conditions are generally manageable with mild currents and visibility between 10 and 30 metres. Access is by boat, and the site includes swim-throughs that require careful buoyancy control. Divers should be aware of potential entanglement risks within the wreckage and exercise caution regarding sea urchins and sharp rock structures. A 5mm wetsuit is recommended to manage water temperatures that fluctuate between 15 and 19 degrees Celsius throughout the year.

Cratera is a reef and wall site located off the Albufeira Coast. The topography offers a varied layout suitable for beginner divers, with depths ranging from the surface down to 19 metres. Visibility at the site typically spans 10 to 30 metres, allowing for clear observation of the underwater structure. Water temperatures fluctuate between 15 and 19 degrees Celsius throughout the year, making a 5mm wetsuit advisable. Access to the site is by boat only. Divers should be prepared for mild currents, though conditions can occasionally include surge or swell. Maintain a vigilant lookout for boat traffic while at the surface.