I booked a private tour with Volcano Discovery on June 14, 2011. The price is significantly less if we have another couple (or more) to go with us. The tour is scheduled for 12 hours and we're going to see a ton of VNP. The guide leading the tour is a geologist. He basically said that it's up to us for what we want to see, but here is an excerpt from their site about this tour.
My only request is that you are moderately in shape and that you can be at VNP early on the 14th . We will be hiking some. My wife and I are in our 30's if that makes a difference. We're both teachers and are super excited about this opportunity to tour with a geologist.
Send me a personal message or respond here if interested. If we get 4 the cost goes down to $250 per person.
Mods: If this request need to go somewhere else please let me know.Edited: 6:05 pm, March 15, 2011