The Ocean Cleanup hails from Delft. It was founded there, and the concept was 'invented' whilst the inventors were busy with an Aerospace Engineering course at

The Ocean Cleanup hails from Delft. It was founded there, and the concept was 'invented' whilst the inventors were busy with an Aerospace Engineering course at the Delft University. Different province and about an hour's travel south from Amsterdam I guess the frisian province is 'Amsterdam Lake District', rotterdam is 'Amsterdam Harbour', The Hague is 'Amsterdam Government Plaza', and Delft is just 'Amsterdam - Burials of Royals + that place with the solar boats and cars and the plastic barges dept' :P NB: I think that "Amsterdam Lake District" thing really is how its marketed from time to time to attempt to distribute tourism more throughout the country. The rest a bit more tongue in cheek.