The Dancing Forest (Russian: Танцующий лес, romanized: Tantsuyushchiy les) is a pine forest on the Curonian Spit in Kaliningrad Oblast, Russia noted for its unusually twisted trees. Unlike drunken trees, the trees in the Dancing Forest are twisted into several patterns, such as rings, hearts and convoluted spirals bending to the ground. The exact cause of the trees' distortion is unknown. According to one version, the distortion is caused by the activity of the caterpillar of Rhyacionia buoliana. In the folk version, the Dancing Forest follows the movement of the sands.Trees of such unusual shapes are found throughout the Curonian Spit.