I went through the trees of mystery today. It's about a 15 minute drive from my house. I've been there many times in my life, but they put in a sky tram about a year or two ago and I haven't been since that was put in, which is a tram that takes you wayyyy above the redwoods up in the sky, it's awesome.
I went there today with a few friends, and it was sick. You hike for about 15 mins on the trail, then you reach the tram.
Here's a quick vid, this is like only half way up the ride, it goes so much higher/longer.