TERROR MOUNTAIN RETURNS FOR ANOTHER YEAR OF FEAR IN 2017, AND THIS TIME, THERE IS NOWHERE TO HIDE! WHAT IS TERROR MOUNTAIN? IT’S WALES’ BEST HALLOWEEN EVENT, OFFERING 4 LIVE ACTION HORROR ATTRACTIONS, SCARY ENTERTAINMENT AND MUCH MORE. SET IN A GENUINE VICTORIAN SILVER MINE, WE HOLD THE KEY TO YOUR NIGHT OF THRILLS, FUN AND SCREAMS!