Be prepared to be amazed by this adventure that puts you up close and personal with the unique phenomenon of crystal caves. Once you're provided with your life vest, helmet and head lamp, you'll begin your short hike, with tube in hand, to the secluded entrance of one of the intriguing caves. Your journey begins as you float into a chamber where high ceilings and a stalactite lined wall give the feeling of a cathedral. As you paddle through the cavern, you are dwarfed by boulders rising up from the river, inviting you to explore further. Crystal encrusted cave formations dazzle you with their beauty as you meander up the river. But this is just a taste of what's to come. As you disembark your tube and enter the crystal chamber to explore the sacred underworld of the Maya, your guide will reveal hidden pottery dating back to 300-900 AD used by the Maya in ancient sacrificial ceremonies. Be prepared as your hike takes you through a tiny passage and you emerge beside a spectacular coral reef like formation encrusted in sparkling shimmer. A 'frozen water fall' column and glittering rim stone dam are just a few more of the amazing formations you'll encounter in this Gothic chamber. Back in your tube, you'll make your way to an underground lagoon boarded by a mini waterfall, which signals the end of your subterranean adventure. Don't forget to visit our photo desks to buy your memories from photographers who captured spectacular shots of you on your adventure. Sip on local beer or munch on a tasty snack at the snack bar as you reflect on the expedition you just experienced. Note: Participants must be at least 8 years of age and at least 48 inches high.