The Moeraki Boulders are a series of enormous spherical septarian concretions with numerous radiating veins. The outer zone is well indurated, but when they crack open the middle is easily eroded. This boulder had lost the middle, and had a tidepool inside about 1 m above the beach.
Maria and Nic enjoying a snack at the boulders.
Complete and damaged concretions.
Sarah standing on a concretion.
Small pool between some concretions. The concretions on the right show the
surface cracks from the veins.
Sand ripples and boulders.
The view north from Moeraki boulders with the Kakanui coastline off in the distance.
Nic Rawlence hanging out on a concretion.
Sarah sitting on one of the boulders - remember, she's short so it's not really that enormous.
Another pretty photo.
This one shows up in a lot of professional photos; this photo, I'll admit, is not very professional.
My wife, the concretion troll.