Be careful when attempting any caches in the Mountains, please go prepared for any eventuality.
A nice wee resting place especially in bad weather. But would you sleep here ?
Bivvies: Let's include both bivvy bags and bivvy shelters in this. The former is literally just a weatherproof bag you put your sleeping bag in, the latter includes a bit of a rudimentary, tent-like structure to increase comfort.
Pros:
- Light and compact, a bivvy excels at being carried.
- Setup and takedown are virtually as easy as roughing it.
- Surprisingly effective in bad weather, working well to keep you warm and dry, at least once you're inside, with everything zipped up.
- An excellent emergency option for stowing in a pack if you're not planning to sleep outside, but may be forced to do so in bad weather
Cons:
- No room to change or move around. If it's wet, you'll be shedding layers and taking off your shoes in the rain.
- Requires you to carry a contractor bag or similar to keep your pack and clothing dry overnight.
- Can be very claustrophobic.
- Applicable to sleeping only. There's no hanging out in a bivvy or bivvy shelter any time when you're not horizontal, with eyes closed.