The Royal Yacht Britannia.
The Royal Yacht Britannia at Ocean Terminal, Leith, Edinburgh. The shopping centre at Ocean Terminal has the shops one expects but many restaurants and bars. The Royal Yacht Britannia is entered through it. Visitors go in at the top deck, see the laid out parts of the yacht and go back and down the stairs within Ocean Terminal, then they go in at the next deck along the gangway and so on down to the engine room. The engine room is the last visitor attraction, number 28 in the tour, which takes about an hour and a half to complete. This picture was taken beyond Ocean Terminal looking in the direction of the Firth of Forth.
As access to the yacht is at the port side rather than aft, as in a ferry boat, there isn't any way of adjusting for the rise and fall in height occasioned by the coming and going of the tide. The water at Leith was controlled and the yacht bridged to a tall building on land that was itself built at the water's edge - water deep enough for the yacht's draught. This was a great feat of engineering, largely hidden from view and only presenting a face of light and entertainment to the visitors to Ocean Terminal shopping centre.
The Royal Yacht Britannia was built by Brown's Shipyard on the Clyde in Glasgow in 1954 and after sailing over a million miles was decommissioned in 1997.