Wales’s Underground [google_map_easy id=”46″] Location: North Wales Functions: Unknown Levels: Unknown Tunnels to: Unknown Notes: During the summer of 1998, cave explorers using scientific equipment were able to confirm that a linked cave system some 15 miles in length exists underground in North Wales. Several years ago a researcher by the name of Frank D. Adams wrote on the results of his personal scientific experiments which may prove that giant cavities exist in granite at depths of more than 11 miles, […] Read More