Prepare for a long day, but well worth it. You will get a chance to walk on and experience lava up close (not hot lava), travel into a lava tube, see a live volcano and experience the stars and night sky like nowhere else in the world. Great experience and highly recommend it!
You get access to privately owned lands in this tour. The ride is rather bumpy through the rough terrain, but well worth it. The sights are beautiful and I don't think I'll be able to swim in such a pristine waterfall anywhere else!