Swinging Boulder

Swinging Boulder is a location/phenomena featured in Fraggle Rock Episode 311: The Beanbarrow, the Burden and the Bright Bouquet. The "boulder" is a hollowed out circular stone that shifts, on its own, back and forth dividing two separate tunnels. The left tunnel leads to "a patch of Clinging Creepers" while the right tunnel leads the finish line of The All-Day, Cross-Cave Beanbarrow Race.