Cristo degli Abissi is a notable dive site located within the Portofino Marine Park. The site features a combination of natural reef and wall topography, highlighted by the iconic underwater statue of Christ. Divers typically access the site by boat, located 1500 metres from the shore. Depths range from 18 to 30 metres, with an average depth of 20 metres. Visibility at the site generally fluctuates between 10 and 20 metres. Due to the depth and potential for strong currents, decompression and nitrogen narcosis are noted hazards. The site is suitable for experienced divers, with typical dive times lasting around 45 minutes.

Balzi Rossi is a marine dive site located within the Portofino Marine Park, offering a combination of wreck and reef topography. Divers can explore depths ranging from 15 to 40 metres, with an average depth of 25 metres. Access to the site is by boat, situated 1800 metres from the shore. Conditions are variable, with moderate currents and visibility typically between 10 and 25 metres. Water temperatures fluctuate between 14C and 17C throughout the year. Due to the depth and potential for entanglement or boat traffic, this site is suited for intermediate divers. Typical dive duration is approximately 45 minutes.

Isola Gallinara, located within the Portofino Marine Park, offers a diverse underwater environment featuring reefs, walls, and an 18th-century wreck. Divers must access the site by boat, as it lies 1500 metres from the shore. The site reaches depths between 15 and 30 metres, with an average of 25 metres. Conditions include moderate currents and water temperatures ranging from 14C to 19C. Due to the presence of unexploded ordnance and the historic wreck, diving is restricted to those accompanied by local authorised guides. Hazards include entanglement, sea urchins, and strong currents. Species recorded around this area include Mediterranean moray, great barracuda, various nudibranchs, and bream.

Punta Sciusciau in the Portofino Marine Park offers a diverse underwater profile featuring a reef, wall, and wreck. Divers can explore depths ranging from 15 to 40 metres, with an average depth of 25 metres. The site is accessible only by boat and is suited for intermediate divers due to moderate currents and the depth profile. Visibility typically ranges between 10 and 25 metres. Water temperatures remain between 14 and 17 degrees Celsius throughout the year. Divers should remain aware of boat traffic when surfacing and maintain buoyancy control to avoid contact with sharp coral and rocks. Species recorded around this area include Mediterranean moray, great barracuda, wrasses, various nudibranchs, and soft corals.

Punta Sciuscia is a reef dive located 600 metres offshore within the Portofino Marine Park. The site features a rocky topography with crevices and overhangs, ranging in depth from 13 to 28 metres with an average of 20 metres. Access is strictly by boat. Visibility typically ranges between 5 and 10 metres, requiring divers to focus on the reef structure. While conditions are generally mild, currents can strengthen, and divers should remain vigilant regarding entanglement hazards from debris. Night diving is permitted at this location. The site is suited for intermediate divers due to the potential for variable currents and the need for careful buoyancy control near the reef.

The San Guglielmo is a 1st class passenger ship launched in 1911 that served as a troop transport before being sunk by a submarine in 1918. Located 850 metres from shore in the Portofino Marine Park, the wreck rests on a sandy bottom at a maximum depth of 29 metres, with an average depth of 28 metres. This intermediate-level dive requires boat access. Divers should be aware of hazards including the depth, potential for entanglement, and nitrogen narcosis. Visibility at the site ranges from 1 to 15 metres, and water temperatures fluctuate between 14C and 19C throughout the year.

The Tyfliss is a deep wreck located in the Portofino Marine Park, Italy, resting at depths between 42 and 48 metres. This site is strictly for advanced divers due to the significant depth and potential for entanglement within the wreck structure. Access is by boat only, and guided tours are recommended to navigate the interior sections safely. Visibility fluctuates between 10 and 30 metres, and divers should be prepared for mild currents. Given the depth and technical nature of the site, divers must monitor air consumption and depth limits closely. A cutting tool and surface marker buoy are essential equipment for every dive at this location.

Secca delle stelle is a reef located 500 metres offshore within the Portofino Marine Park. The site sits at depths between 13 and 25 metres, with an average depth of 19 metres. Divers experience mild currents and visibility ranging from 10 to 30 metres. Due to the proximity of vessel traffic, the use of a surface marker buoy is essential during all ascents and descents. The site is suitable for beginners and offers year-round diving, including night dives. Guided tours, equipment rental, and air fills are available locally to assist with site navigation and logistics.