Vostok (Russian: Восток) is the capital city of Upper Vaiood and one of the most populous cities in the Bellinsgauzenian interior. The city is located along the confluence of Lake Vostok and the Vostok River. The city and regional toponyms are named after the Russian ship Vostok, which (along with Mirny) were the ships commanded by Fabian Gottlieb von Bellingshausen, whose voyage discovered Antarctica in January 1820.