Located in the city of San Mateo, Parkside Aquatic Park is a waterfront aquatic park that has an unnamed beach with light brown sand. This beach is also known as Parkside Aquatic Park Beach. The beach is situated along the banks of a lagoon named the Marina Lagoon. A grassy recreational park is also present near this beach. While Parkside Aquatic Park does not have lifeguards, it has many other amenities including restrooms, picnic areas, boat launching facilities, and a children’s playground. In addition, seasonal watersports equipment rental facilities are also available near this park. Dogs on leashes are allowed in Parkside Aquatic Park.