February 25, 2024 Antarctic Sound & Brown Bluff

Some have asked about the temperature. Actually, it is not that cold, around zero centigrade or 32 for those metrically challenged. The wind sometimes makes it feel colder, but we are dressed warm. The parkas Silversea provided are great.

While we anticipated an early morning zodiac cruise, that was changed. Instead, since the passage was clear of ice, it was decided that the ship would be our observation deck and cruise the Antarctic Sound. We had already scheduled an early breakfast in the suite, so we were up and about to view the beautiful scenery.  They opened the bow area for passengers for the best viewing location.

Again, the crew announced that this was only the second time a Silversea ship had ventured into this area. At 9:00am, they announced the crew was setting out on a couple of zodiacs to explore and see if they could find some interesting landing sites.

This afternoon we will be exploring Brown Bluff. Brown Bluff is a basalt tuya on the Tabarin Peninsula of northern Antarctica. It formed in the last 1 million years as a result of subglacial eruptions within an englacial lake. The volcano’s original diameter is thought to have been about 12–15 kilometers (7.5–9.3 mi) and was probably formed by a single vent. Brown Bluff is divided into four stages: pillow volcano, tuff cone, slope failure, and hyaloclastite delta; and into five structural units.

The volcano gets its name from its steep slopes and brown-to-black hyaloclastite.

We first did a zodiac cruise around the area. We picked up a small iceberg. This ice is over 1,000 years old.

As we stepped ashore, we officially made it to our 7th continent!

Along this shore are many penguins. They we so fun to watch. Most were fledglings still molting and often chasing after an adult, mom or pop, for food. While fun to watch they smell really bad. Note the lighter color rock all around, this is their poop.

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