HOLLOW-een at the Cave of the Mounds

Cave of the Mounds

2975 Cave of the Mounds Road, Blue Mounds, WI 53517 (directions)


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CLOSED Today: Dec. 10, 2023


HOLLOW-een at Cave of the Mounds in Blue Mounds, Wisconsin is all of October. October 1st through 31st. Costumes are encouraged. They will be led by a guide and trick-or-treaters will receive a mix of rocks and fossils at stations in the cave.

Don’t be afraid of the dark – join us for the month of October for HOLLOW-een at Cave of the Mounds! Enjoy this sugar-less trick-or-treat experience at Cave of the Mounds. Anyone who wants to join can for an extra $2 charge per person when buying a ticket. This includes a reusable cloth bag, crystals & fossils that you will get in a trick-or-treat style throughout the cave. Trick-or-Treat for rocks and fossils from all over the world while exploring the Cave of the Mounds.

Purchase at the Ticket Desk or online after September 5th, 2023

*Note: Guest must buy tour ticket to join in this experience.

2023 Dates & Times

October 1-31

Open daily from 9 am to 5 pm. Last Cave entry time is 4 pm daily

Weekdays – Tours leave frequently starting at 10 am
Weekends – Tours leave frequently starting at 9:30 am


$2.00 charge in addtion to a tour ticket. Purchase at the Ticket Desk or online.

Regular Admission (Ages 13+) ….. $21.99
Child Admission (Ages 4 – 12) ….. $12.99
Tot Admission (Ages 3 and under) .Free


Cave of the Mounds

2975 Cave of the Mounds Road, Blue Mounds, WI 53517

43.017440 / -89.815740

Located 20 minutes west of Madison, Wisconsin off U.S. Highways 18/151

Last Updated

Sept. 24, 2023, 12:14 p.m.

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December 10th, 2023 4:31 a.m. CST 18