Forbidden Caverns – Sevierville, Tennessee - Atlas Obscura
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Forbidden Caverns

Sevierville, Tennessee

Wild lights and sound effects turn a walk through some caves into an eye-popping 1960s tourist attraction. 

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Tucked below English Mountain at the eastern edge of the Great Smoky Mountains sits a picturesque series of caves. They are not unlike many of the 8,000-some-odd caverns that dot the Tennessee landscape, but for the fact that these caverns are lit up like Oogie Boogie’s lair in The Nightmare Before Christmas.

The Forbidden Caverns stretch for a half mile and feature eerie and arresting mineral formations, echoing grottoes, silent reflecting pools, and a clear, cool stream likely fed by a nearby underground lake.

The caves have been hospitable to human activity for centuries, from the indigenous peoples who frequently sought shelter here from mountain winters, to moonshiners who operated stills here from the early 1920s to the early 1940s. One chamber boasts a remarkably large wall of flowstone or “cave onyx”—a type of rock formation highly prized as an architectural ornament in the 19th and 20th centuries. This stretch was, thankfully, left intact.

The caves were outfitted as an inviting edutainment venue and opened to visitors for guided tours in 1967. Groups are conducted through places like the “Grotto of Evil Spirits” and the “Grotto of the Dead,” while light shows, sound presentations, and guides highlight the history and legends associated with the Forbidden Caverns. The temperature, reportedly, is always 58°F (14.4°C).

Know Before You Go

No flash photography. Tall visitors may have to duck a lot. Bring a light sweater, as it gets a little chilly, and wear comfortable sneakers. It is not open all year round so make sure you plan your trip when you can visit it. Open Monday through Saturday, April through November, beginning at 10 a.m. Last tour leaves at 5 p.m. Closed Thanksgiving Day, and all of December, January, February, and March.