If you're flying in for the Wave Bash in Pistol River, Oregon, here are some options:
Crescent City, CA - Most expensive, closest, best scenic route. 44 miles south of Pistor River on Hwy 101. Less than a hour away. Order rental car EARLY.
Medford, OR - Next best. On I-5 144 miles or 3 hours
Eugene, OR - On I-5 200 miles or 4 hours
Portland, OR - On I-5 6 to 7 hours, depending on the route, and just over 300 miles either way.
San Francisco, CA - On Hwy 101 400 miles and 7 1/2 hours