When I visited the glacier, it seemed to calve every five to ten minutes, sometimes less, with huge chunks of ice breaking off with a crack like thunder and crashing into the sea. It was like seeing a gleaming white fortress crumbling apart.
The benefit Glacier Bay has over Hubbard is that you get to see a lot more... glaciers. While they may not be as big and mighty as Hubbard Glacier, these smaller glaciers can have just as much charm as Hubbard. You get to see a wide variety of glacier types too, from coastal glaciers to alpine ice sheets. The mountain views are spectacular as well, and the wildlife is incredible. As mentioned, spouting whales are a common site, and you can see pods of dolphins, furry sea otters, and fluid seals. Though they trip may be longer in Glacier Bay, both the wildlife and sight-seeing diversity makes the time spent worth it.
Therefore, if you're very short on time, it may be a better option to visit only Hubbard Glacier. However, if you have the time, travelling through Glacial Bay is a must. The wildlife, the numerous glaciers, and striking views makes it just as worth it.. Probably even more so. Though transportation can be difficult for both, whatever you chose, a visit to Alaska wouldn't be complete without a trip to either of these wonders.
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