Cape Nosappu is a point on the Nemuro Peninsula, Nemuro, Japan, which is the easternmost point in Hokkaidō. It is also the easternmost point in Japan which is open to the public. It is located where the waters from the Pacific Ocean meet those from the Sea of Okhotsk. The Cape Nosappu Lighthouse is the oldest in Hokkaidō, built in 1872. The cape is very close to the Habomai Archipelago, which is administered by Russia. The closest island, Signalny Rock, is just 3.7 km away.