Humpback whales may be seen in the winter from the observation park at the Rincón Lighthouse. The peak season is February, though whales have been spotted from late December through late March. Just ask around the marina or the lighthouse. In the peak season you may see them a few hundred meters off the lighthouse.
Sand strikers, also known as bobbit worms, are primitive-looking creatures that lack eyes, or even a brain. Despite this, they are savage predators who shoot out grapple-like hooks to reel in passing fish.