This afternoon’s excursion was a zodiac cruise, rather than a hike. Everything we saw we saw from the side of the boat. We were lucky enough to have our Excursion Leader Jonathan as our zodiac driver, so we had a super knowledgeable guide for the trip.
The main highlight was a couple of crab seals. One was sleeping and molting, but another was awake and a bit more active and we saw him dive into the water. He resurfaced again and we were hopeful he would climb back on to his little iceberg but he decided to keep swimming. We learned that these seals have teeth that they can use to hunt seals, but they are all kind of trident shaped and when the seal closes its mouth it acts like a mesh. So a seal can gulp up a huge mouthful of water containing krill and then close its mouth, expel all of the water through the teeth, and it is left with a yummy mouthful of fresh krill. This is exactly what Baleen whales do on a much larger scale!
We also learned a little about how to read the history of an iceberg. Since the ice on an iceberg melts faster than the ice out of the water bergs will often rotate many times. You can see on this one how that is the case. They call the left of the on pictured below the keel. And you can see the rings on the right as well.
On this one you can see how the center of gravity has shifted more to the right, lifting the thinner part up out of the water on the left.
Today was really quite a day. The guides all told us at recap that we had been extremely lucky and we had seen about 75% of the things we were likely to see in an entire trip in a single day! Which was funny because I had just commented that if for some reason we suddenly had to leave today, I would still have counted the trip a great success. I’m glad that we will have more days to see and re-see so many interesting things.