Passing the Danish Straits, either by the Great Belt or the Sound, leads ships through shallow water, strong currents, harsh weather conditions and high density of traffic, making it a complex challenge for mariners. The Passage Planning Guide -Baltic Sea: Skagen to Bornholm has been developed through cooperation between Witherbys, DanPilot and BIMCO to provide an overview for mariners and to assist in proper planning for a ship transiting in this area.