Including 14K, 23K, 37K and 50K runs across three open space preserves with views of the Pacific Ocean and Santa Cruz Mountains. Visit https://www.active.com to register. This half marathon and 10K run is in its 16th year. Visit https://www.active.com to register. A 5-mile, leisurely paced hike with docents Paul Vadopalas and Tommi Smith along the Ridge Trail.