Gold Bluff/fern canyon is worth the ride on a rough gravel road just north of Orick CA. Old 101 just south of Klamath CA.travels through the fed park(BIG REDWOODS). Mouth of the Klamath overlook on the north side of river. Jedediah Smith State Park and a ride up to Smith River are a must.
All of the Or. coast. Jet boat ride up the Rogue River is pretty cool.
