Jarrell Cove State Park offers a protected saltwater boat launch and moorage facility on Harstine Island with 650 feet of dock space, 12 moorage buoys, and a pumpout station accessible year-round.

The park features a well-maintained mud beach landing suitable for kayaks and small watercraft, along with camping facilities, restrooms with showers, and a nearby marina with supplies.

Note that the Cascadia Marine Trail landing becomes a mudflat at low tide, and the extreme 19-foot tidal range requires careful timing for boat access.