Canals & Waterways 2012 Midi Wall Calendar. Britain boasts some of the best loved and extensive waterways in the world and this stunning 2012 wall calendar features 12 glorious illustrations of some of the best loved boating and canal routes in the country. Each month includes fantastic factoid on the featured subject alongside the full sized calendar grid which has ample room to add your own notes, dates and appointments alongside the pre-printed national holiday information.