The Ocean Flats Cathedral, is a large Catholic cathedral located in San Fierro's westernmost neighborhood of Ocean Flats.


The cathedral is based on the Cathedral of Saint Mary the Assumption in San Francisco, California. In real life, the Cathedral is located in the Cathedral Hill Neighborhood in the centre of San Francisco, as opposed to the area surrounding the city's coastline, as depicted in the game.

The cathedral is inaccessible to the player and plays no role in the storyline, but it is one of the 50 Snapshots scattered throughout San Fierro.