Redwood National Park has some trail camps that are best suited for short (one or maybe two night) backpacking trips. There haven’t been any good long-distance routes since the state parks closed their trail camps in 2014.
None of these camps are in old-growth redwoods.
Besides the camps listed here, most drive-in campgrounds in the state park system have hike/bike sites where long-distance cyclists and backpackers can drop in and camp without reservations.
A peaceful and secluded camping experience. There are no defined campsites and no facilities; just pick any spot on the wide, sunny gravel banks with views of redwood-carpeted hills.
On a sunny shrub-covered hill by the sea. It’s only a five-minute walk from the parking lot, so it’s mostly used by non-backpackers.
This is a nice campground on a quiet, remote hilltop, but unless you just want a quiet place to camp there isn’t much reason to hike up here.
On a sunny plateau with patchy spruce and alder woodland but no redwoods.
Set among second-growth redwoods just off the Redwood Creek Trail, this camp was originally intended for equestrians.
On a heavily-logged hillside near the end of the Redwood Creek Trail. Huge stumps and dense second growth makes the area dark and gloomy.