#OnTV - Tonight BBC One Northern Ireland is to broadcast "Belfast City: Mud, Sweat and 400 Years". The documentary starting at 22.35 is presented by former army engineer Dick Strawbridge who knows a thing or two about incredible feats of construction.

So when he was asked about where Belfast Harbour ranks in terms of ingenuity, there was no hesitation. "People talk about the efforts that went into building for the 2012 Olympics or the Channel Tunnel? Pah!" he said. "They're just not on the same scale as Belfast Harbour. It really is amazing."

The feat of engineering is made clear in this documentary made for the broadcaster, where you can read more from BBC News Northern Ireland. Strawbridge may also seem familiar on our screens as he is one of the presenters of the popular BBC series 'Coast'.

In addition, Afloat.ie had reported on a new heritage space 'A Port that Built A City' in Belfast Harbour that details the city's emergence as a major port and its subsequent growth and development as an industrial hub.