HOLLOW-een at Cave of the Mounds

Don't be afraid of the dark - join us for the month of October for HOLLOW-een 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!

Purchase at Ticket Desk!

*Note: Guest must buy tour ticket to join