An Underground River

Our (expected to be the final) Outdoor Challenge was epic , and I am looking forward to making this an annual event. We drove south out of Auckland, leaving the motorway at Mercer and driving for 50 minutes through the stunning Waikato region to a gorgeous spot 3 kilometres from the coast. We were going caving ! The Nikau Cave is situated on a farm belonging to our hosts, Philip and Anne. The idea of walking through an underground river for one kilometre was a little daunting, not that the Pikelets wanted to admit it! The dark yawning gape of a cave mouth that greeted us was gentled by the song of native birds and the trickling of a gentle stream as it played its music across the rocks. The stream flowed out of the cave, and that's where we were going! Our time underground was amazing. The first third of the cave was the most difficult, kind of like exploring rock pools at the beach - in the dark! The soft knocking sounds as heads bumped on the ceiling made us grate...