Extraordinary images have been circulating this week of the “Roumania”, a British steam ship that went down near Foz de Arelho (Caldas da Rainha) after hitting a sandbank over 126 years ago.

The 3,387-ton wreck has lain, covered by sand, just a few metres from the beach ever since.

But on the last day of 2018, two diver friends flying a drone in perfect weather over the unusually calm sea made the unexpected discovery: their drone captured an overhead image of the the boat – and they realised this was a unique ‘window of opportunity’.