Take U.S. 101 North from Eureka. A few miles past the small town of Orick you will see the first signs for the Park. It is quite large with several options for stopping. Fern Canyon is an excellent choice, as is Lady Bird Johnson Grove.
Google maps worked great for me. I didn't have any problem.
Just take HWY 1 the scenic shore route
Click the "directions" button, then type in your starting point.
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