Rightmove lists ancient caves for sale and they're cheaper than you'd think Bruce Wayne would no doubt be jealous of the person who purchases these Brecon Beacon caves The caves are half a million years old (Image: Rightmove) There are always big stories on WalesOnline - don't miss any with our daily emailInvalid EmailSomething went wrong, please try again later. Sign me up now When you subscribe we will use the information you provide to send you these newsletters. Sometimes they’ll include recommendations for other related newsletters or services we offer. OurPrivacy Noticeexplains more about how we use your data, and your rights. You can unsubscribe at any time.