Some people don't like crawling into large holes in the ground. I do. And, my family usually goes with me.
So, while we were in Bend, Oregon we went caving. The Lava River Cave is a great beginners cave to wet your feet on. It is large so an easy walk, well if you don't mind climbing 150 steps to get back out of the cave. So, if stairs are a problem for you, this isn't the best choice for a cave. But, if you don't mind walking a few...okay...a lot of stairs, this is a great cave to start spelunking in. It is fairly level ground. So, you don't have to crawl over stones and rocks to take your tour. Believe me, I've been in those kinds of caves. There are large sections where everyone can stand side-by-side. There's no need to get down on your knees and squeeze into tiny crevices. And, I've been in those kinds of caves too. Plus, you can rent lanterns at the front desk and you sign in, so someone will come looking for you if you aren't out when the cave closes.
All-in-all, this is a great family cave to go spelunking in. So, if you're in Central Oregon anytime soon, stop by Lava River Cave for a quick self-guided tour. It's free. Well, aside from the $5.00 parking pass you buy at the entrance to the cave. And, if you forget to bring flashlights, you only need to pay $5.00 to rent a lantern.