Pier 39 is home to the sea lions. There are floating docks that the sea lions sleep on. Despite there being several docks, they all seem to want to be on the same one.
I’m a fan of seeing animals in nature, doing their thing. Sea lions are kind of boring when they’re sleeping but it was easy to get to, there were other things like restaurants and the Aquarium of the Bay nearby, and I got to spend a few minutes appreciating the fact that humans built something for wild animals to enjoy.