Hi
I am taking a cash passport in Australian currency. The co-op travel service do the Aussie one. My friend used a cash passport in Souh Africa and it worked well to pay for purchases, hotel bills, etc. You can also obtain cash at ATMs.
The co-op can issue you with 2 cards. I am leaving one card at home and my family will top it up for me should I need more funds whilst away.
You can always call me on 0161 449 9058 if you want to know more.
As Olly says, it is best to take a mixture of finances,
Regards Carol (on the same trip as SammyJo)