It’s over a mile of walking, if you can keep your kids close I’d say any age but like another reviewer said there is an area that has a drop off and there is no railing, when you come to that part just hold your kids close and stay toward the side and you’d be fine. They are quite amazing my boys loved them it was like the Goonies

Tickets are sold at the desk.

I'm not sure on the ARP. Their price are very reasonable. $18 For adults,$8 for children,and children under 4 get in free. Go and enjoy!

1$off each.

I think the steps up and down would be a big challenge. The distances arent that long to walk and there are frequent stops to explain what you are seeing.

I believe they are closed from mid-November to mid-March.

Yes that is correct, if do get a chance to go there, you will see the equipment recording the levels. The gentleman that works there can explain all of the cool features it does. It’s really interesting to see when North Korea detonate there nukes unground that this machine actually saw the waves. The cave goes pretty deep in ground which I believe makes a great location. Really neat to see if you get a chance.

58 constant.

No part of the caverns is wheelchair accessible. So sorry.