Niue rocks (too) 17.9.10
Niue is a coral island uplifted by three large earthquakes a while ago!
Consequently it is made of limestone, resulting in the spectacular cave formations associated with this geology.
Our photos don't do it justice, but here are our best efforts.
For those of you who had forgotten what Caroline looks like - she does most of the land photography!
This is the fattest stalagtite we've seen.