[44°20′8″N, 143°22′45″E] 2026-02-27 🎧 Tokkari Flute in Monbetsu 紋別港のトッカリの笛 JP EN 波の上下する空気圧を利用してアザラシのような鳴き声を響かせる「トッカリの笛」。 The wave-activated sound device in Mombetsu Port is called the "Tokkari Flute," which uses changing air pressure from rising and falling waves to make a seal-like crying sound along the Clione Promenade walkway.