This is a Mitchell 28 Sea Warrior called Ebor Light II and is based at Naburn marina, near York, North Yorkshire. British Waterways have fitted a blue light bar to the roof of the cabin to warn other mariners when they are assisting in an emergency call.
The stern view. British Waterways used patrol boats to uphold laws and by-laws on inland waterways. In 2012 they became the Canal and Rivers Trust.