It covers one hundred and thirty-eight acres (56 ha) (a total of 7,840 feet of shoreline) on the eastern shore of Lopez Island in San Juan County, Washington.

The state park features two sand spits that enclose a salt chuck lagoon that provides a migratory stop for waterfowl, including Bonaparte's gulls.

The park has 37 spaces for tent camping with fire pits, one dump station and two restrooms.

The small group camp accommodates up to 20 people and has three walk-in sites, one of which is an Adirondack (three-sided) shelter with eight bunks.

As Native American tribes migrated up and down the coast, they would stop in this location to clam, crab and fish.

A replica of the original log cabin built by the Spencers for guests is out on the tip of the spit.

Apples, wild berries, and cherries Eel grass, ferns, foxglove hemlock, moss or lichens, rose, seaweed,, ,thistle, and yew.

Birds include crows or ravens, ducks, bald eagles, geese, gulls, hawks, herons, hummingbirds, ospreys, owls, woodpeckers, and wrens.