Lopez Lake - Mallard Cove Boat Ramp is a public launch facility located at 6800 Lopez Drive in Arroyo Grande, offering access to Lopez Lake's 22 miles of shoreline for boating and fishing enthusiasts.

The facility includes sewage and bilge pumpout services and is managed by San Luis Obispo County Parks.

Note that as of January 1, 2026, boats with internal ballasts or ballast bags require a mandatory 30-day quarantine and must arrive clean, drained, and dry to prevent invasive mussel species.