Again , even if your travel plans never materialise , it does help to download Tripadvisor's offline app called City Guide . Do not download from Google play direct. First download the Tripadvisor app from Google play then download the City Guide from the app button you just downloaded. This works like a dream on Android platforms.
Some of you will find this helpful without using data but useless if your battery is going kaput. So make sure you have your powerbank with you at all times.
