Your first shoreline-and-sand weekend
This is one of the easier dune destinations to visit for the first time, because a full-service city is four miles away. The things that catch people out are the equipment specs and the seasonal calendar.
Two zones run on opposite schedules. The Yellow Zone is closed October 1 through June 30. The Mud Flats are open only July 1 through October 1. Work out which parts of the area are actually open on your dates, because the answer changes the trip considerably.
Grant County Code asks for a bright red or orange flag at least 48 inches square, flown at least 108 inches above the ground while stopped and visible from all directions while moving. That is a four-foot flag nine feet up, which is more than most machines carry off the showroom floor. Measuring it in the driveway takes a minute; discovering it in the staging area does not help you.
Every machine needs a current Washington ORV tag. Helmets are required unless the vehicle has both a roll cage and seatbelts. Riders under 16 must be accompanied by a licensed adult, so decide those pairings before you leave.
There is no shade in the riding area and the dark sand runs hot. Bring a shade structure and anchor it properly, and bring far more drinking water than the forecast suggests. The county describes the area as having no bathrooms on one page and refers to restroom buildings on another, so plan as though there are none.
Four miles south of the Moses Lake city limits, on Potatoe Hill Road. Drive south on Division Street, or take exit 174 off I-90 and follow the signs south. Trailer to the area rather than riding the county roads, which are not open to ORVs unless specifically authorized.
Camping is allowed almost anywhere, except on Memorial Day, Fourth of July, and Labor Day weekends when a marked corridor must stay clear. Secure camp against wind before you ride, not after. Then do a short orientation loop and learn what the sand is doing today before committing to the terrain that looked good from camp.
Being twenty minutes from fuel, groceries, a parts store, and a hospital makes this a forgiving place to learn. Forgetting something is an errand, not a ruined weekend. That is a genuine advantage over remote destinations and it is worth taking.
Verify before travel. Conditions, zones, and regulations can change. Use the responsible agency's current information for final decisions.
Open Grant County's official source →