Monumen Kapal Selam

Monumen Kapal Selam is a naval museum centered on the preserved KRI Pasopati (410), a Soviet-built Whiskey-class submarine located on the Kalimas River bank on Jalan Pemuda in Genteng, central Surabaya, East Java. Opened in 1998, it displays the submarine cut into sections and reassembled on land, allowing visitors to explore its authentic interior. It is notable as Indonesia's largest submarine monument and a tribute to the history of the Indonesian Navy.

Visitors can explore the full exterior and interior of the 76-meter KRI Pasopati submarine, including torpedo rooms, crew quarters, control room, and periscope. The vessel sits in a riverside park on the Kalimas River with landscaped grounds, a supporting building showing a documentary film about submarine life, dioramas, and photo displays. The experience is educational and confined, with narrow hatches and steep ladders inside the submarine.

Features KRI Pasopati (410), a Whiskey-class submarine built in 1952 at Vladivostok, Soviet Union, and commissioned into the Indonesian Navy in 1962. It served in the fleet until 1990 and participated in Operation Trikora for the liberation of West Irian. After decommissioning, the submarine was cut into 16 sections, transported to Surabaya, and reassembled on land as a monument inaugurated on 15 July 1998.

Serves as a prominent educational monument and symbol of Indonesian naval heritage and maritime defense history, preserving public memory of the Navy's submarine fleet and serving as a learning center for national history in Surabaya, known as the City of Heroes.