It’s fun to sit and watch the Elephant Seals that congregate along the California coast in the winter and spring. Specifically, it’s entertaining to watch some of them peacefully sleeping on the beach while others slither around fighting with each other. It’s quite a spectacle.
As a crazy side note, I have read that Elephant Seals dive to depths of 5,100 ft when hunting and sometimes dive significantly deeper than that. Pretty amazing.