They take 16 people every 15 minutes. There are 16 openings right now for the 9:15am tour on 6/22 (Sunday). I will find out more about the time we need to allow to get there from Salt Lake and hike to the cave entrance. We can meet and carpool in SL. Tickets are $8 and can be bought and time reserved on the Timpanogos website. The following is from the website: The only access to the cave system is by walking a strenuous 1 1/2-mile-paved trail, which rises 1,092 ft to an elevation of 6,730 feet above sea level. The round-trip hike and tour of the cave system takes about three hours. Mid-summer temperatures on the trail can reach 100 degrees F. However, temperatures in the caves average 45 degrees, so a sweater or light jacket is recommended. Hiking shoes, water, flashlights and sunscreen will make your visit safe and enjoyable. More info. is available on the site if you want to find out more. I will purchase my ticket once 1 other person RSVPs. The times do sell out fast so RSVP as soon as you can. We will probably need to meet before 8 am so watch for that to change.