Giant mushrooms Giant mushrooms are a type of fungus that are much larger than average mushrooms. There were giant mushrooms located in Bottomless Cave next to an underground river, and Marvin White crafted one such mushroom into a boat. References ↑ As seen in The Mysterious Moles. ↑ As seen in The Mysterious Moles. Retrieved from "https://superfriends.fandom.com/wiki/Giant_mushrooms?oldid=51948" Categories: Species Fungus species Community content is available under CC-BY-SA unless otherwise noted.