Honoring Dutch Maritime Heritage The Half Moon (Halve Maen)welcomed by The City of Hoorn, Netherlands, on May 23rd, 2014. Westfries Museum Westfries Museum Westfries Museum On June 28, 2018, King Willem Alexander and Queen Maxima visited the City of Hoorn.They explored the city on a water taxi owned by Bram Nijenhuis, the former Captain of the Half Moon.