Swamps played an important role in the mythology and culture of the Celts. It was in the swamps that various sacrifices to the gods were often made. This was likely due to the belief that swamps were treacherous, as their seemingly solid ground could suddenly give way, opening the door to the realm of the spirits. Ritual cauldrons, such as the famous Gunderstrup Cauldron, as well as fragments of wagons and chariots, have often been found in swamps. Sacrifices of humans and animals were apparentl