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💬 About Inner Space Cavern — Georgetown
Inner Space Cavern is one of Georgetown's most distinctive and accessible attractions, earning 4.7 stars across 3,214 reviews for the guided cave tours that have been running since the cave was discovered in 1963 during IH-35 highway construction. The cave's origin story is remarkable: drilling equipment broke through the cavern ceiling, revealing a pristine cave system that had been sealed for thousands of years. The cave features stalactites, stalagmites, flowstone formations, and the prehistoric animal bones that have been preserved in the cave sediments. Guided tours run approximately 45-75 minutes depending on the tour type selected — standard tours and the more adventurous crawling tours for the spelunking-curious. The cave maintains a constant 72°F temperature year-round, making it genuinely cool and refreshing during Central Texas's brutal summer months. The IH-35 Georgetown location makes Inner Space among the most accessible show caves in Texas — exit 259 from northbound or southbound IH-35, directly off the highway. For Georgetown families and Hill Country visitors, Inner Space is the cave tour that doesn't require a special drive to Burnet or Natural Bridge.