Otter 841 has been causing havoc in Santa Cruz, California (Credit: Laird Henkel/ California Department of Fish and Wildlife)

A Southern sea otter, nicknamed Otter 841, has been hassling surfers at Santa Cruz, California's Steamer Lane all summer. The five-year-old appears unannounced at the famous surfing spot. She then effortlessly hoists herself out of the ocean and onto surfboards. Sometimes, the otter destroys the boards by chewing on them. Other times, she bullies the startled surfer into giving up the board entirely.