Close to Portoroż, at a short distance from the coast, you will find the wreck of the Maona Rossa. 
Maona is a cargo boat that was used for transporting salt. It has lied on the seabed since WW 2 and it was probably sunk by an underwater mine; we can see three similar mines near the wreck. Their diameter is approximately 1m. It was sunk between Savudrija and Piran, in the direction of Piran. It is still full of merchandise, probably bauxite. 

Maona Rossa is similar to a “trailer”. It is a ship without self propelling, used to transport different kinds of merchandise. It lies in the middle of Piran bay on 21m depth (top part of the boat is on 18m). 

Location is accessible only by boat. Location is very popular among divers due to the easy access and openness of the wreck.