紋別 流氷 時期關於「知床 Nature Cruise」標籤，搜尋引擎有相關的訊息討論：
Shiretoko Nature Cruise | Whale, Dolphin & Bird Watching | Drift Ice ...Shiretoko Nature Cruise. Full-scale nature exploration, experience-based Shiretoko sightseeing cruise. Let's Go to Shiretoko You Haven't Seen Yet.缺少字詞： gl= tw