HOLLOWeen 2026

All of October, 2026

Come along kids and adults alike and join us for our annual Halloween rock collecting event!

From October 1st to 31st, enjoy some sugarless fun as you tour the underground with our (not so) ghoulish guides. Special trick-or-treat stations in the cave allow participating guests to take a few of our favorite rocks and crystals home with them.

Anyone, big or small, can join us for this year’s Halloween event for just $3 extra with their cave ticket! Guests will also receive a mesh bag to carry their sugar-free treats in.

This tour experience is ongoing for the entire month of October on every tour, every day—including Halloween day.

Location & Hours

Memorial Day thru Labor Day

Open 7 days a week, 9am – 7pm
OPEN Memorial Day, July 4th, and Labor Day

After Labor Day until Memorial Day

Open 7 days a week, 9am – 5pm
CLOSED Thanksgiving, Christmas Eve, and Christmas Day

2975 Cave of the Mounds Rd
Blue Mounds, WI 53517