A volcanic cone full of mud about sixty feet high between Barranquilla and Cartagena (nearby), where one can take a twenty-minute mud bath (float on the grey mud while being massaged by male attendants). Afterwards, touchy female attendant will wash-off the mud in the lake. Best not to go during weekends when it can be crowded with a line. Up to twenty people can fit inside. Mornings are best to have the place for just you and your partner. Cost including tips is negligible.