Over 20,000 people visit this cave every year. Have you toured the deepest cave in Idaho yet?

Minnetonka Cave in Southeastern Idaho is a living cave, meaning that it's continually changing and growing. It's also the deepest cave in Idaho and a great spot to get out of the heat during the warm summer months, although you might still want to bring a jacket, no matter how hot it is, because the constant temperature of the cave is about 40 degrees all year long.

A couple of other things to keep in mind, according to Only in Your State, is that the cave has over 440 stairs, so you will be doing a lot of climbing and your tour will take about an hour and a half. Prices for the tours are $8 for adults and $6 for kids and children 5 and under are free, with all proceeds going to the Forest Service to help with preservation and upkeep of the cave and its facilities.

If you are going to take the road trip and head to St. Charles Canyon, just north of Bear Lake to take a tour, keep in mind that the cave is in the forest, so there are no phone services and they are not able to take credit or debit cards, so it's cash or check only...just like the good old days, back when the mine was first developed for tours in the 1930s

Tours of Minnetonka cave begin Memorial Day weekend and continue through Labor Day with tours available from 10 a.m. to 5:30 p.m. seven days a week.

Happy spelunking!

For more details, info and maps click here.