Monsters of the Deep Half Marathon

The Monsters of the Deep Half Marathon is a unique running event held in Santa Monica, California, celebrating National Sea Serpent Day. Participants can choose from 5K, 10K, 15K, and half marathon distances, all featuring scenic courses along the oceanfront. The out-and-back routes stay on the beach path, offering breathtaking coastal views and well-marked turns with water stations and restrooms.

The event fosters an inclusive, friendly atmosphere suitable for all ages and abilities, including walkers and families with strollers. Organized by Mercury Events LLC, it emphasizes community, fitness, and fun, with finisher medals, race photos, and incentives for multiple event participation. Visit the organization's website for the most recent information.