Christchurch.NZ

It is worth taking a flashlight so you can explore the old tunnel and see the glow worms.
You can also look at the start of a seventy meter penstock near the tunnel entrance that once led to a hydroelectric power station. Wear warm socks and sturdy footwear as ankle deep water runs through the tunnel all year round. Mind your head in some places; the tunnel ceiling is low.もっと詳しく