1. The bus journey to Lyttelton from Burwood it takes 46 minutes and levels at 9:56am.
2.The bus that takes me to Lyttleton levels at 9:56am so that means I would have to be at the bus stop at 9:50 so I can be six minutes early for the bus to Lyttelton
3.That means I have to be on the ferry at 10:02 am and I would arrive in Diamond harbour at 10:50 am.
4.That means I have some time in Diamond harbour then get back on the ferry at 11:05