Explore a natural cavern inside Raccoon Mountain with Aquarium educator George Bartnik and experienced cave guides on a two-hour tour through an underground maze. Slither through low passageways, scramble over rocks and slide down slippery slopes while discovering fossils and cave wildlife such as salamanders, millipedes, crickets and, we hope, the Crystal Caverns cave spider.

Meet at Raccoon Mountain Caverns in Lookout Valley. Suit up in full spelunking gear — helmet with headlamp, kneepads and gloves (which are included) for an adventure on the wild side.

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RiverRocks is a fun-filled, family-friendly, environmentally-conscious event that celebrates the Tennessee Valley’s incomparable natural resources, the health benefits of an active, outdoor lifestyle and Chattanooga’s commitment to environmental stewardship and land conservation.

Events and activities include rock climbing, trail running, kayaking, rowing, cycling, off-road biking, hiking and hang gliding for both expert and novice competitors as well as casual participants of all ages. The 10-day event will also feature entertainment such as live music, hot air balloons, river cruises and more. RiverRocks celebrates the majesty of the area’s mountains, rivers and forests by holding many of the festival’s events in some of the Tennessee Valley’s unsurpassed parks and conservancies. These natural resources inspire the kind of outdoor activities that promote healthy lifestyles.