Porto, primarily known for its rich culture and famous port wine, is also a gateway to some remarkable scuba diving opportunities in the northern part of Portugal. The region's dive sites are a blend of Atlantic marine life and intriguing underwater landscapes.

Vila do Conde: Just north of Porto, the underwater scene at Vila do Conde is suitable for experienced divers, particularly because of the presence of the 'Ludwig' and 'Kampf' shipwrecks. These historical wrecks are covered in marine life and offer an exciting dive for those with wreck diving experience.

Espinho: Further south, Espinho presents challenging dive sites with strong currents and colder waters that are ideal for the seasoned diver. The area is known for its rocky reefs and the chance to see larger fish species.

Matosinhos: The local beach at Matosinhos, adjacent to Porto, is a favored spot for beginners. The calm sea conditions and diving schools located here make it a great spot for training and introductory dives.

Leixões: The port area of Leixões has several dive sites that are well-suited to novice divers. With mild currents and plenty of sea life close to the shore, it’s an accessible place for those new to the underwater world.

Porto's coastal waters offer a chance to encounter a variety of marine species. Divers can expect to see an array of Atlantic fish, including sea bass, groupers, and octopuses. The kelp forests and rocky outcrops are also home to smaller creatures such as nudibranchs, anemones, and crabs.

The diving conditions near Porto can vary significantly with the changing Atlantic weather patterns. Water temperatures range from around 14°C (57°F) in the winter to 20°C (68°F) in the summer. Visibility can fluctuate but generally falls between 5 to 15 meters (16 to 49 feet). The best diving conditions are typically from late spring to early autumn.

Dive costs in the Porto area are relatively affordable, with single dives including equipment rental priced from €40 to €60. Beginners can find PADI Open Water courses for approximately €300 to €400. Diving centers also frequently offer dive packages that reduce the per-dive cost for those looking to explore multiple sites.