Today was almost all about icebergs.

The Ilulissat icefjord is the biggest iceberg factory in the Northern Hemisphere. Bergs calved from a tongue of the Greenland ice sheet are spat into the head of this fjord—but there's a problem: A shallow hump at the mouth of the fiord catches deep-drafted bergs, locking them in an iceberg jail yard, until the irresistible force of more arriving bergs push them past.

Boat tours gave guests a close-up experience of the immense icebergs at the fjord's mouth. A short hike down a boardwalk led guests to a fjord-side cliff that overlooked the iceberg prison.  

The Ilulissat area is home to Sermermiut, settled thousands of years ago by the Saqqaq indigenous people and one of the most important archaeological sites in Greenland. Together, history and natural wonders have earned the Ilulissat icefjord the designation of a UNESCO World Heritage site.

Many guests took advantage of free time for walks in town. The dog sledding tradition is much alive in Greenland, and guests saw many of tethered dogs, waiting for their summer vacation to end and their sledding work to begin.