Enjoy a guided 90-minute, half-mile walk into the beautiful Minnetonka Cave. See nine rooms with amazing stalactites, stalagmites, and banded travertine. Be prepared for the 400 steps up and down in the cave and bring a jacket, since the cave is cool at about 40 degrees year round. Open 7 days a week from 10 a.m. to 5:30 p.m. from mid-June to Labor Day depending on the weather. Please visit their website for hours, entry fees and safety information.