Out in the fairway, an ICEBREAKER passes by

Unfortunately, I didn't get a picture of this characteristic boat. An icebreaker is yellow-painted and has several meters in depth. A few years ago, it was brought to attention that Sweden's largest icebreaker ODEN couldn't pass through Öresund, between Malmö and Copenhagen. Which icebreaker passed by in Furusundsleden, I wonder? Atle, Ymer, or…?