Aran Islands
We went to Aran Islands where we visited the stone age structure of Dun Aengus. A massive half circle fort made of piled limestone rock that was built near the extremely high cliffs of Moher on the mainland. The eroded limestone rock along the base of the island was phenomenal as you had to try to guess if the erosion had taken place while under water or if it had been caused by the extremely strong winds that exists in this area. Along the trail, which was lined with more limestone rock on which you could find occasional fossils, there was a pink round rock that did not fit. It turns out it was a glacial erratic. A rock from far far away (Yes, very scientific) that had been weathered, eroded and deposited by a glacier many years ago, then used as part of the trail.
Then in the afternoon, instead of going into town, we went for a plankton tow. We, the teachers, got into a zodiac with Jared, undersea specialist, and Jerome the IT person and went around towing the plankton net. We pulled up some interesting mini-jellies, a couple of tiny minnows and some other large enough creatures to see with the naked eye. The samples were placed in the fridge for later viewing under the microscope. I am looking forward to that!