This was my introduction to the great old growth redwood forests along the coast of far northern California. The old growth forest along Bull Creek which bisects the northern half of the park is about 8 miles long and a few hundred yards wide contains about a thousand giants according to an interpretive sign I saw. Pretty cool area, and an easy hike. I did this in the middle of the day, and it was a little warm even in the dark of the forest.
WARNING! Hiking and outdoor related sports can be dangerous. Be responsible and prepare for the trip. Study the area you are entering and plan accordingly. Dress for the current and unexpected weather changes. Take plenty of water. Never go alone. Make an itinerary with your plan(s), route(s), destination(s) and expected return time. Give your itinerary to trusted family and/or friends.