Prego is a reef site located in Porto, Portugal, accessible by both boat and shore. The topography features a reef structure starting at 6 metres and extending to a maximum depth of 30 metres, with an average depth of 16 metres. Divers should be prepared for moderate currents and potential surge in shallower areas. Visibility is variable, ranging from 5 to 30 metres. Water temperatures remain between 14 and 16 degrees Celsius throughout the year, necessitating appropriate thermal protection. The site is suitable for night diving and accommodates beginner divers, though caution is advised regarding sea urchins and surge conditions. Species recorded around this area include wrasses, conger eels, and common octopus.

Praia da Agudela in Porto features a long, semi-submerged rocky reef running parallel to the shore. This formation creates calm micro-pools at low tide, providing a sheltered environment for snorkeling. The site is suitable for beginners, with depths ranging from 1 to 5 metres and an average depth of 3 metres. Entry is via the shore, though snorkelers should be aware of potential surf, rip currents, and cold water temperatures between 14C and 17C. Visibility typically fluctuates between 5 and 15 metres. Facilities at the beach include parking, toilets, and showers to support visitors.

Navio do Norte is a wreck dive located off the coast of Póvoa de Varzim, Portugal. The site sits in depths ranging from 9 to 33 metres, with an average depth of 30 metres. Access is by boat only, and the site is suited for intermediate divers due to the depth and potential for entanglement within the wreck structure. Visibility varies between 3 and 15 metres, and currents are generally mild. Water temperatures remain between 14 and 16 degrees Celsius throughout the year, necessitating a 7mm wetsuit or drysuit. Species recorded around this area include common octopus, wrasses, sea stars, crabs, bream, sea hares, snails, shannies, European green crabs, and rockpool prawns.

The Ruy Barbosa is a wreck site located 200 metres offshore from Porto, Portugal. Resting at depths between 9 and 15 metres, the site is suitable for beginner divers. The wreck structure is accessible via boat, with visibility typically ranging from 10 to 30 metres. Currents are mild, allowing for controlled exploration of the hull. Divers should exercise caution regarding sharp edges on the wreck and nearby rocky seabed sections. Water temperatures remain cool, between 14 and 17 degrees Celsius, necessitating a minimum 5mm wetsuit with a hood and gloves. Species recorded around this area include common octopus, wrasses, conger eel, sea stars, crabs, and various small reef fish.

Bezerros is a reef site located off the coast of Póvoa de Varzim, Portugal. Suitable for beginners, the site features depths ranging from 10 to 15 metres, with an average depth of 16 metres. Divers can expect mild currents and visibility between 5 and 10 metres. Access to the site is by boat only. Water temperatures remain between 14 and 17 degrees Celsius throughout the year, necessitating appropriate thermal protection. Species recorded around this area include common octopus, various crab species, sea stars, bream, sea hares, snails, and shanny. Divers should remain aware of boat traffic while surfacing and use surface markers to increase visibility.

U-1277 is a German World War II submarine resting upright on the seabed at a constant depth of 30 metres. Located over 3 kilometres from the shore of Porto, this wreck dive requires boat access. Divers experience visibility ranging from 5 to 20 metres and water temperatures between 14 and 16 degrees Celsius. Due to the depth and potential for strong currents, this site is suitable only for advanced divers. Maintaining neutral buoyancy is essential to avoid contact with the wreck structure. An SMB is strongly recommended for all divers to manage surface conditions and boat traffic in the area.

Brenha is an artificial reef and wreck site located 800 metres off the coast of Póvoa de Varzim. Resting at a consistent depth of 27 metres, this site is reserved for advanced divers due to the depth and moderate currents. Visibility typically ranges between 5 and 10 metres, with water temperatures fluctuating between 14 and 16 degrees Celsius. Divers must navigate potential entanglement hazards from loose lines or netting and sharp edges on the structure. Species recorded around this area include sea stars, crabs, sea hares, snails, and shanny. Boat access is required to reach this site, and divers should monitor Atlantic swells which can impact conditions.

The Veronese is a shallow wreck and artificial reef located off the coast of Porto, Portugal. Resting at a consistent depth of 10 metres, this site is accessible via shore entry and is suitable for beginners. Divers can expect mild currents and visibility ranging from 5 to 10 metres. Due to the water temperature, which fluctuates between 14 and 17 degrees Celsius, a 5mm or 7mm wetsuit is recommended. Divers should exercise caution regarding potential entanglement risks within the wreck structure and be mindful of sharp rock and coral features. Typical bottom times are approximately 50 minutes.