Ninjing, meaning 'Tranquility' in Chinese, is the second largest city on Mars, after Londinium. Ninjing was the first settlement on Mars following the launch of the first Ark Ship 'Tranquility' in 2072, the city was named after the ship. Ninjing is located just due East of Tranquility Valley, where the ship landed, located in the most built up area of Mars, with neighbouring cities of Beaumer, and New Haven. Ninjing is now a large city, on the edge of the Buru Ocean, and at the edge of the Yaoyuan River delta, spreading across onto Du'Khang Island in the centre of the delta.