I wouldn't have a claimed cave that wasn't walled off but if I did and someone trespassed into it, the most I would do is track the scent to see where you were and then either befriend or keep an eye on you .. lol.
Trespass scents only last 8hrs, if you are really that curious, take a look, though keep in mind there may well be players who take exception to that, it may be they have walled it off inside anyway.
I wouldn't bother to make a mineshaft to get into it when you can prospect and make a mineshaft that actually leads to something worthwhile, mineshafts are pretty expensive.
I'm sure if you travel around a bit there will be another entrance somewhere, caves are pretty abundant in the world tbh.

Koru wrote:It is like in Lord of the Flies, nobody controlls what is going on in the hearthlands, those weaker and with conscience are just fucked.
Avatar made by Jordan.Animal lovers - Show us your pets! -
viewtopic.php?f=40&t=44444#p577254