Ranked the best dog park in the United States by USA Today's 10Best Readers' Choice Awards in both 2016 and 2024, Fiesta Island Dog Park covers a fenced 90-acre expanse at 1750 Fiesta Island Rd in the 92109 zip code. The Fiesta Island Dog Owners nonprofit, known as FIDO, has more than 16,000 members and played a central role in rallying community support to keep the park's rustic, undeveloped character intact after the California Coastal Commission reviewed the site in 2021. Inside the fenced perimeter, dogs roam off-leash across open meadows, sandy dunes, and hiking trails that wind through low coastal scrub before reaching calm bay shoreline where many dogs wade and swim. Stocking up on treats and supplies at Petco on Balboa Avenue before heading to the island saves a trip later. The generally waveless water of Mission Bay makes the beach accessible even for smaller breeds or dogs new to swimming. Ample sand parking inside the gate accommodates vehicles, though summer weekends and holiday mornings fill spots quickly. The park is open daily from 4 a.m. to 10 p.m., and owners are expected to clean up after their pets and maintain voice control at all times. No public restrooms or water fountains exist inside the dog park, so bringing water for both dogs and humans is essential. The park's interior trails offer elevated views across Mission Bay toward Crown Point and the downtown skyline. Brunch with a tropical twist at Miss B's Coconut Club on Mission Boulevard rewards dog owners after a sandy morning. The park remains one of only two public beach locations in the City of San Diego where dogs are allowed off-leash at all times.