Boat Launch

at Washington State Park

a person launches a kayak from the boat rampboat ramp symbol

restroom symbol


A concrete boat ramp is available to launch your own watercraft into Big River. A vault toilet and parking are available. This area is subject to flooding and river levels vary.

Fishing is allowed. Click here for more information on fishing in Big River.

Watercraft shuttle service is offered through the park concessionaire for a fee. Please contact the concessionaire at 636-586-2995 for more information.

The cabins, store, swimming pool and watercraft rentals are operated by your concession hosts, Doyle and Dawn Kennon.  Let the Kennons or a member of their staff make your visit to Washington State Park more enjoyable.  For reservations or more information about the concession facilities, please call 636-586-2995 or visit their website.

Park Hours


38.086051, -90.662420

Park Hours

For temporary closures related to weather, stewardship activities and maintenance, visit our Park and Site Status Map.

COVID-19 Temporary Hours

As of Thursday, April 1, concessionaire operations at Thunderbird Lodge will open Friday, Saturday and Sunday through mid-May, when hours will expand to seven days a week. Pool operations will open May 29. Lodging, float trips, watercraft rental and retail by Missouri Park Adventures will continue following all social-distancing guidelines. Face coverings are encouraged and may be required by local order.See for more information.

Park Grounds:

  • 7 a.m. to sunset, year-round.
  • November through March
    The roads to Shelter #1/CCC Ridge, the swimming pool, cabins and the Big River Day-Use Area (including Shelter #2/Big River Day-Use Area Shelter) are closed to vehicles. They are open to foot traffic.

Interpretive Center hours

Sunrise to sunset, year-round

Park Office hours

April through October

  • 9 a.m. to 4 p.m., Monday through Friday
  • Closed Saturday and Sunday

November through March

  • 9 a.m. to 4 p.m., Monday, Tuesday, Thursday and Friday
  • Closed Wednesday, Saturday, Sunday and state holidays

Please note there may be times when the office is closed while staff are working in the park.