In the top layer of the moat, the lead casing of a colf club was found. This cover, called a colf club head, is triangular in diameter. It is slightly convex at one side and flat at the other. The flat side of the colf club head was the strike area. Colf club heads were made for both right-handed and left-handed users. The colf game was very popular in the Middle Ages and was at its height in the 17th century. The game was played in the open air: on streets and squares, and in winter, on ice. The aim was to either to reach a particular target or cover the longest distance in the fewest possible strokes. Quite often, distances of more than one hundred metres were covered during the game. By late 17th century, the colf game had gradually disappeared, possibly due to a lack of space. Later, in the 18th century, the colf game developed into the golf game. The colf game was played with a colf stick and a small ball. Originally, the colf sticks and the balls were made of wood. In the 16th century, the colf sticks were weighted with lead shells and the wooden balls were replaced by leather balls filled with raw wool, hair or feathers. This allowed the players to hit further. The colf game was very popular for a long time, which in modern Dutch still lives on in the expression "Dit is een kolfje naar mijn hand", meaning "This is right up my alley". It initially referred to a colf point that was easy to score, for instance very close to the target.
