Explore the Sutro Bath Ruins

The Sutro Baths, built in 1894, were designed by Adolph Sutro as a massive public bathhouse. The property spanned 3 acres and was the height of engineering and artistry. Over time, bathhouses became unpopular and public usage dropped off. The bathhouse began to crumble and was proposed to be replaced with high-rise apartment buildings, but after a fire in 1966, the city forwent the plan and left the ruins as-is.

The ruins are now open to the public. Bring good shoes, because you can climb on and walk through the structures. There is also a small cave/tunnel you can meander through to get a view of the Pacific without obstructions from buildings. If you are up for more than just exploring the baths, the Land's End trail goes right beside the ruins, so you can follow it to hike along the coast. It's a pretty main and easy trail with incredible scenery.

I highly recommend visiting the Baths around golden hour/sunset.

There are tons of ways to get there via driving or public transit. There is parking at the Baths but it can get pretty crowded (especially on weekends). The 38R bus has a direct route and will drop you off right in front of the Baths.

There is a cute gift shop by the parking lot at the Baths. The Cliff House has a wonderful restaurant that overlooks the ruins and the ocean.