This month Doug found a waterfall on an old map which seemed to be near our house, so of course we went on a Goonies like adventure to find it. This involved crossing a sheep field, climbing over multiple fences, trying not to fall down banks and walking through a river a few times.. but we found it!
The top of it anyhow... the bottom involved trekking through a river to reach it so that's for another day.
**Disclaimer this may have taken over 30 minutes... I'm not that fast at walking ;)