If your device (e.g. phone) has internet access, you can 'teleport' to different geohash locations. Click the top bar on the right where it has the # symbol. The characters after that are your geohash. In the #location channels you can switch to widen your radius from (BT) 'mesh' to 'block', 'neighborhood', 'city', 'province' or 'region'. Or if you know a specific location geohash, you can enter that. No extra hardware required.