In Reply to: Bum bag or body wallet posted by Simbiotic on Wednesday, 24. August 2011 at 23:36 Bali Time:
and as discreet as possible.
Room safe or similar for the bulk, a discrete cash belt for carrying larger amounts if necessary and a normal wallet for everyday stuff.
You may also want to consider photo copy of passport to carry in the belt.
In front you have an eye on it, whilst if carried on your back someone else will.