I am looking for a shapefile (readable e.g. in QGIS) which only contains the Great Britain boundaries. In other words I only need the island/s boundaries.
I have already checked and downloaded the 'Boundary-Line-GB' from OS Open Data (https://www.ordnancesurvey.co.uk/opendatadownload/products.html) but in the shapefile have been showed also the GB regions' boundaries (which I don't need).
Any suggestion from wehere I can download it for free?