We took our bobhouse off the lake yesterday as well. Shorelines are getting scary looking.
Also on the side of our bobhouse that got the most sun ..there was a 3x4 area that had melted from the reflection off the house had had barely an inch of ice. So when going to your bobhouse beware!
Which also points out when traveling across the ice beware that you may be approaching a spot that once had a bobhouse there!