- not all are essential but can make your travel more comfortable or enhance it according to ones needs.
Maps - well actually, as we were out in the wilds, I would say that good topographical maps are necessary, one set in each group.
- In case you get lost in the mountains
Small calculator - solar to avoid batteries (or mobile phone)
Zip-lock, or waterproof sealable bags
-good for keeping the small things in order in your backpack
Duct tape -useful for repairing all kinds of things
GSM Mobile phone + charger - GSM phones work
in New Zealand. If you have a Telia Refill or Comvik IQ card you can get it changed so you can make foreign calls.
Adaptor - for electrical equipment. Link
Adaptor - for telephone/PC connection. Link to UK type. Link to US type. Note: RJ-11 wired opposite U.S. style (outside conductors used instead of inside)
More things to come.....