HomeCurrentWork in the neighbourhoodOpmeerOpmeerCatching moles on the dikeThere are moles in some places in our dikes. We have these trapped by a professional mole catcher for water safety reasons. Quay improvement HULOKHULOK is an abbreviation for Hensbroek, Ursem, Langereis, Opmeer, Koggenland. The dikes were rejected for height and inward stability.