P-821 Heroj

P-821 Heroj is a submarine from the Yugoslav Navy that now serves as a museum ship in Tivat. The vessel is around 50 meters long, painted in dark colors and has a streamlined shape designed for fast and quiet movement under water.

The submarine was built in Yugoslavia in the late 1960s to defend the Adriatic coastline and to become independent from foreign military equipment. After Yugoslavia dissolved, it moved to Montenegro, was retired in 2004, and opened as a museum in 2013.

The name Heroj means hero in Serbo-Croatian, pointing to the military importance this vessel once held. When visitors today walk through the narrow chambers, they experience the simple functionality that Yugoslav naval crews worked and lived with under the sea.

Access to the submarine is through narrow hatches and steep ladders, so the visit can be difficult for people with limited mobility. It is best to come early in the morning or later in the afternoon when fewer people are around and you can move through the rooms at your own pace.

The submarine was entirely designed and built in Yugoslavia, making it the country's first fully home-made underwater vessel. The crew quarters are so tight that sailors often had to share bunks with others to save space.