Babagahara is a wilderness that is located in Dream Land. It is mainly made up of rivers, jungles, and even has a dark cave whose entrance is marked by a skull-like marking above the cave's entryway, and whose interiors form several forks in several passageways. It is the home of the legendary Pukey Flower. For years up until the events of the anime episode Flower Power, no one has ever returned from the jungles of Babagahara alive. This is either due to the wild animals living there, such as a giant spider, swarms of bees, and even a giant snake living in the cave where the Pukey Flower is located, as well as other perilous hazards in the forest, or due to the fact that the flower itself eats up anyone who thinks they can get the Pukey to wake them up. The jungles of Babagahara were never visited again after the Pukey Flower was destroyed at the end of the episode.
The area may be a reference to the real location Aokigahara, a Japanese forest located near Mount Fuji that's become infamous for its unsavory historical connection to demon folklore and suicides and is also known as the Sea of Trees.