Day 5 Moki Tunnel or Hobbit's Hole on the road to Whangamomona
Day 5 Hobbit Hole, 180 metres long by 4.5 metres high. You will see I am down to my last 3/4 of a bottle of liquids, having used up the other two on the bike and the two strapped to the bag on the top rack.
I wasn't concerned though as my Garmin GPS gave me an accurate read out of kilometres traveled and I knew I had 90kms to do today, so I could pace myself and know exactly how far I had been and how far I had to go.
This proved to be one of my favourite and most useful pieces of kit on the whole trip, as knowing how far I had gone and how far I had to go each day was extremely useful - it definitely wasn't a fancy over the top superfluous electronic gadget.