A dragon is massive and only grows larger as it ages until, as rumors go, they are the size of the hills and mountains (while other rumors say that all geography is actually dragons, but those are not so widely entertained). They do not render all about them to waste - that is certain - and they like to be left alone. Waking a dragon is still a sure sign of an impending death, so the sport of spelunking has not yet caught on in the Parallel Kingdom.