See all Things to do in Watsonville Watsonville for: Adventure, Food And Dining, Art And Culture, Nightlife, Spa, History, First Timers, Family, Romance, Shopping Elkhorn Slough Elkhorn Slough Preserve, Watsonville, CA 95076, USA About Explore by foot or kayak the unique estuary environment of Elkhorn Slough (pronounced "slew"), 1700 Elkhorn Rd, Watsonville (near Moss Landing, south of Watsonville itself), [7]. Add to Wish List
