Delhi launches the Namo Yamuna Cruise Safari, offering a 30-minute recreational cruise between Sonia Vihar and Jagatpur to boost tourism and provide new family attractions. New Delhi: The 'Namo Yamuna Cruise Safari' is set to launch in the national capital on Tuesday, offering Delhi residents a new recreational attraction along the Yamuna riverfront, with an approximately 30-minute cruise between Sonia Vihar and Jagatpur.