We pre-booked the crossing to Alrø at 12:30 p.m., but didn't realize that it departs from the harbor on the neighboring island of Hjarnø, and that you also have to take the ferry between Snaptun and Hjarnø to transfer to the bike ferry. The captain of the Hjarnø ferry immediately recognized this and notified his colleagues on the Alrø ferry, who then made a detour via Snaptun harbor to pick us up. A big thank you to the crew of the Alrø ferry for this.