Inland Waterways 2012 Calendar. Britain's inland waterways have enjoyed something of a magnificent transformation and renaissance over the last 2 decades in particular. The quality of water, repairs and walks have in many areas been updated, improved and restored improving local areas, wildlife and boating and barging opportunities and holidays. This stunning 2012 wall calendar features a new full colour illustration each month of Britain' famous and extensive waterways and includes vertical calendar grids to keep you organised through the year.