Today, we are cruising into Disenchantment
Bay to see beautiful
Hubbard Glacier. At 76 miles long, 7
miles wide, and 600 feet tall, it is North America 's
largest tidewater glacier. Tidewater
glaciers are valley glaciers that flow all the way down to the ocean. At its terminal face (front), 350 feet of the
glacier is exposed above the waterline and 250 feet of it is below the
waterline.
Hubbard Glacier
The ice at the terminal face (front) is approximately 450 years old and
can be over 2,000 feet thick.
Minor Calving at Hubbard Glacier
For the next 2.5 hours, the ship floats in the ice-studded water about
2-3 miles from the face of the glacier. It
is windy and cold outside but we brave the elements for about 1.5 hours
photographing the blue ice and minor splashes from calving. Loud cracks like rumbling thunder indicates
that calving is occurring somewhere on the glacier. Listen
carefully for a fizzing sound (called “Berg Seltzer”). According to Wikipedia, “this sound is made
when the water-ice interface reaches compressed air bubbles trapped in the ice.
As this happens, each bubble bursts,
making a 'popping' sound.” These sounds
add to the excitement and experience of visiting glaciers.
Turner Glacier
For more information on Hubbard Glacier, visit the National
Park Service website at: