If at all possible, I HIGHLY recommend a helicopter flyover of the volcanos on the big island. You just can't get the sight of the lava flows from the ground, or the lava pits bubbling, from a land tour. This is truly awesome, albeit it expensive. You might be able to find some 2 for one deals. I was able to find them in a book you can order called the Entertainment Guide (www.entertainment.com
). Here's the index to the book, which you can see offers some helicopter tours. http://www.entertainment.com/index.c...nav=offerindex
I buy one of these books every year for the city I live in. I also look to buy one for cities I travel to. I bought one for my last trip to Hawaii, and figured it saved me close to $500 on dinners, entertainment, and tours. It's a really good deal (By the way, I'm not affiliated with this company at all, I just love a good deal :-). Also try a www.google.com
search of "Hawaii coupons" and see what you turn up.
...but then, you can't miss a land tour of the Volcano National Park either. When I was last there, I planned on 4 hours. I thought I would be there even less since it was raining. Wound up spending the entire day there. Bring good shoes, as there are some great hiking trails. Definitely hike out to see the steaming vents. REALLY NEAT.
Here's another neat trick. If you drive there, on the way back put your car in neutral and see how far you can coast when you leave Hawaii Vol. Nat. Pk. If the traffic doesn't make you start/stop, you should be able to coast 20 milesor more at or above the speed limit. Gives you a little appreciation for the vastness of the volcano!