Shelter Island Boat Launch is California's busiest boat ramp with 10 lanes and an estimated 50,000 launches annually, featuring a recently renovated state-of-the-art facility that opened in 2018 with an 80% enlarged basin, longer boarding floats, and improved navigation.

Located at the northwestern end of San Diego Bay, it offers the closest access to the Pacific Ocean (approximately 3 miles away) and provides restrooms, ample parking for boat trailers, and 24-hour access to bait barges where anchovies and sardines can be purchased.

The facility also includes a public walking platform with viewing areas, making it ideal for both recreational boaters and fishing enthusiasts.