Here’s Humboldt Redwoods State Park just off Highway 101 south of Eureka, CA, a nice scenic drive you can do with hikes along the way among the red giants.. “Humboldt Redwoods State Park contains some of the world's most majestic ancient redwood groves. The park encompasses over 53,000 acres, including 17,000 acres of old-growth coast redwoods.” Some of the trees date back more than 2,000 years old! | Adventures With Jeff Martinez