That ice doesn't look too bad - fairly thin. A friend of mine boats out of Juneau, Alaska and he bumped into a "growler" (small bits if icebergs) with his bow while visiting one of the glacial bays last year. It did some damage near his bow thruster, take a chunk out of the outside and making cracks on the inside around the thruster tube. Glacial ice is dense, hard, sharp, and nothing to mess with.
Our last cruise of the year was the lighted boat parade in the first weekend of December, and the first cruise of the new year was on Jan 1 unless the weather was horrible. We often broke ice, up to about 1.5" to get in and out of the slip. Here's our marina in mid-February. My slip is near the end of the dock on the left.