In reply to ChrisJD:
And..... my advice for Font rain (speaking from experience),
For periodic rain:
1) head to crag that MAY be dry
2) Take jet boil and brew making paraphenalia,
3) at first arrival at said crag, find suitable (but not used) over hanging boulder and dump all stuff
4) ensure suitable boulder has view of 2 good sized trees, about slacking lining distance apart.
5) Erect slack line.
6) Play on boulders where possible, as rain descends, head for overhanging boulder, stick the kettle on and laugh at each other falling off aforementioned slack-line
Voila..... making the best of bad weather!!
Heavy rain:
Duvet day with laptop and films in tent!