Years! If I just keep trying to find a way out of the island on winter days =)
But yeah... there are tons of walks here. The longest I have done was 3 days, 11 hours per day. I will not do that again! LOL more days and less time, otherwise it is too hard on the feet...
You cannot simply walk into Mordor,
FrodoForky! And I am quite sure you're not gonna do that again :))