As I understand from the Ramayana, Lord Rama completed his last Journey on the earth , after the demise of Lakshmana, by entering the Sarayu River.
I have come across information that Rama evacuated Ayodhya from the banks of by a Pushpaka Vimana flying North.
Rama proceeded first with his Royal entourage and the people of Ayodhya followed suit.
This process took three days
