If you are active on Facebook you might have received a notification saying 5 Free Wifi networks near you, this a nee feature by Facebook which they started testing out last year and now have official released it.
The is available for iOS and Android users Worldwide, so make sure your app is updated to the latest version. So with this Facebook will tell you free or public WiFi networks available near you.
You can view it in two modes, either a list mode or a map mode, which will show yours and public WiFi’s location on the map. Remember it includes free and public Wifi, which means it will include Wifi on cinema halls, hotels etc, which give you few minutes of browsing or you have to signup for the Wifi.