La Corota Island Flora Sanctuary in the Laguna de la Cocha, Colombia Teodoro Wolf and Yerovi Islands in Cuicocha Lake, Ecuador Teopan Island in Lake Coatepeque, El Salvador Islas Quemadas in Lake Ilopango, El Salvador Samosir Island in Lake Toba, Sumatra, Indonesia Bisentina and Martana Islands in Lake Bolsena, Italy Kamuishu Island in Lake Mashū, Hokkaidō, Japan Nakano Island in Lake Tōya, Hokkaidō, Japan Mokoia Island in Lake Rotorua, North Island, New Zealand Motutaiko Island in Lake Taupo, North Island, New Zealand Two islands in Lake Dakataua, in the caldera of Dakataua, West New Britain Province, Papua New Guinea Volcano Island in Taal Lake, Luzon, Philippines (and Vulcan Point in Crater Lake on Volcano Island) Samang, Chayachy, Serdtse (Heart), Nizkii (Low), and Glinyanii (Clay) Islands in Kurile Lake, Kamchatka, Russia Lahi, Molemole, Si'i, and A'ali Islands in Lake Vai Lahi, Niuafo'ou, Tonga Meke Dağı Island in Meke Golu crater lake, Turkey Horseshoe Island (now submerged) in Mount Katmai's crater lake, Alaska, United States Wizard Island and Phantom Ship in Crater Lake, Oregon, United States