An enormous natural cave system exists beneath the Ubikokeli Highlands
. These underground warrens wind for hundreds of miles, with outlets to the surface near the Edosi Forest
, at intermittent points throughout the highlands, as well as subsurface openings into the Straits of Svimohzia
. Many of these tunnels run below the water table so access can be a problem, depending upon the time of year and whether or not it has been a wet year.