Tahuya State Forest is overflowing with ATV excitement. There are enough trails and variety for any ATV skill level. Tahuya is a blend of public and private properties, so you might run into an occasional "NO TRESSPASSING" sign, but for the most part, the area is so immense there is no reason to feel stymied by them. Just ride in another direction.
This is an area for the mud loving ATV group! The Tahuya has a temperate rainforest climate. The best time of year for ATV mud runs is during the rainy season. Because the natural landscape was created by receding glaciers long ago, there are deposits of glacial till and exposed gravel throughout the area. In the summer this causes very dusty conditions and rather nasty traction, but the mud is great when it rains!
The Park is over 23,000 acres and has something for everyone. Any paved roads are county roads, so be sure you're street legal if you must use them. Pick up a map at a ranger station before you start out, all the trails marked on the site maps are ATV / OHV useable. There are unmarked roads are for hikers and bicyclists, who may also come darting out of the underbrush at you, so be aware of its multiple use status. This is a huge place to take in and there are campsites available, so plan to spend some time here with all your ATV equipment, and ATV buddies. Tahuya is open all year during daylight hours. There are no ATV usage fees, but always be expecting that to change at any time in the future so be sure to call before you haul- it's the times we live in.