Olo is a high rock located off the breakwater of the port of Leixões. The base of the rock is close to 19 meters and the top is around 10 meters. It is accessible only by boat.

The Charneca is a tugboat, wrecked at the entrance to the port of Leixões, next to the breakwater. The wreck is perched on a sandy bottom 14 meters deep with a north-south orientation. Accessible only by boat.

Located next to Matosinhos Beach, this place is sheltered by the south pier of the port of Leixões. The site consists of rocks next to the pier, predominant sand bottom, and depths that can vary between 2 and 7 meters. Accessible by beach or boat.

Located in front of the Carreiros jetty, accessible by the beach or by boat. The bottom morphology varies between rocks and sand passages. The depths can vary between 3 and 20 meters depending on the distance to the coast.

The U-1277 is a German submarine from World War II located in a North-West direction from Oporto, off Cabo do Mundo, 10 minutes away from Leixões marina. Laying on a sandy bottom 31 meters deep, it lays to the port side about 45º, with the bow pointing southeast. The wreck is accessible only by boat.

Wreckage of the tugboat “Marialva”. Located off the mouth of the Douro River, on a sandy bottom, 25 meters deep. Very damaged and silted. Accessible only by boat.

This cruise ship was stranded off Memory Beach, southeast of the old town. On a mixed background of rock and sand between 9 and 15 meters deep, the wreckage of this shipwreck lies scattered. This site is accessible by beach or by boat.

The wreck of this barge rests at 27 meters deep on a sandy bottom. Located off the mouth of the Douro River, approximately 3 nautical miles from land, and is accessible only by boat.

Shipwreck of a freighter near the mouth of the Douro River, on a sandy bottom 14 meters deep with West-East orientation. Accessible only by boat.

This is the wreck of a barge located off the Cabedelo sandbank, on the mouth of the Douro River. It is perched on a sandy bottom 10 meters deep with northeast-southeast orientation. This site is accessible by the beach or by boat.