Last month I went to do some geocaching in France (I'm from Spain) and as we don't have any specific GPS device, we had to use our Iphone. The problem as you might know is that we need to switch-off the data from the smartphone due to the high roaming costs, so doing geocaching offline ends up being a real mess. We searched for a solution because 4 years ago we also went to the south of France for geocaching and it was a pity to search caches with no Internet connection. We found a company that rents Pocket Wifi devices, that is like a little device that creates a portable wifi hotspot that you can carry everywhere and get connected everywhere you go. It was a very smart solution and we end-up having lots of fun (however we didn't find any caches, LOL). The company is called Wifivox and price per day was very reasonable (7 euros) as you can share the wifi with all your friends.
Have you tried something similar while geocaching outside your country?
