The Peter the Great Gulf has a coastline of about, with the largest bay of the gulf of about divided by the Muravyov-Amursky Peninsula and the Eugénie Archipelago into the major bays of Amur Bay to the west and the Ussuri Bay to the east. The coast is indented by many smaller minor bays, including Possiet Bay, the Zolotoy Rog, and Diomede Bay in the west, Lazurnaya Bay in the Muravyov-Amursky Peninsula, and Strelok, Vostok and Nakhodka Bay to the east. The functioning of these bays as harbours is severely limited by the freezing from early December to mid-April. The exception is Nakhodka Bay, the only place on the Russian Pacific coast where the sea usually doesn't freeze. The Peter the Great Gulf contains numerous islands, including the Rimsky-Korsakov Archipelago and Furugelm Island to the west, and Askold Island and Putyatin Island to the east. The Eugénie Archipelago is separated from the Muravyov-Amursky Peninsula by the Eastern Bosphorus, which runs between Vladivostok and Russky Island, the largest island in the archipelago and Primorsky Krai. In 2012, Russky Island was connected to the mainland by the Russky Bridge. About of the gulf area is protected as the Far Eastern Marine Nature Reserve. Even though large whales have become very rare in the area today, eight species of cetaceans are known to migrate into the gulf. Common minke whales often swim nearby shores of the coastal towns, and Beluga whales are known to migrate to Rudnaya Bay in the north and occasional appearances around Vladivostok. The gulf's coastline is also frequented by seals and Steller's sea lions.
History
Initially from 1855 the gulf was known as Victoria Bay, but in 1859 it was renamed to Peter the Great Gulf in honor of Tsar Peter the Great. Russia founded the outpost of Vladivostok in June 1860, and acquired the entire Maritime Province under the provisions of the Treaty of Beijing in November 1860. The Manza War in 1868 marked the first major clash between Russians and Chinese - being the Russian name for Chinese people of the area at the time. Hostilities broke out around Peter the Great Gulf when the Russians tried to shut off gold-mining operations and to expel 1000 Chinese workers who were employed near Vladivostok. The Chinese, not wanting to leave, resisted a Russian attempt to remove them from Askold Island. Afterwards, the Chinese raided two Russian Army military stations and three Russian villages in response. A sailing regatta that annually is known as the Cup of the Peter the Great Gulf. Between 5 and 12 July 2013 warships from the Russian Navy's Russian Pacific Fleet and from the People's Liberation Army Navy's North Sea Fleet participated in Joint Sea 2013 - bilateral naval maneuvers held in the Peter the Great Gulf. Joint Sea 2013 was the largest naval drill yet undertaken by the People's Liberation Army Navy with a foreign navy.
