HomeCurrentWork in the neighbourhoodOpmeerOpmeerCatching moles on the dikeThere are moles in some places in our dikes. For water safety reasons, we have them removed by a professional mole catcher. Quay improvement HULOKHULOK is an abbreviation for Hensbroek, Ursem, Langereis, Opmeer, Koggenland. The dikes have been rejected on the basis of height and inward stability.