We are going to be on an escorted bus tour which ends in Christchurch. On the last day, we go to Lake Tekapo. We can then get to Christchurch, either on the TranzAlpine Train from Arthurs Pass or continue by coach through the Rakaia Gorge to Christchurch.
We will be doing this on Feb 9, 2012. I've seen lots of comments re this, but most of them have been about winter, or doing the whole trip. Given that this is summer, and that we are only doing part of the train ride, would you recommend doing it by train or taking the coach?
If you do recommend by train, and given that we're going to Christchurch, I should try to get the A-B seats, right?