There is a big permanent metal platform with a hatch that opens. It wasn’t open often but our balcony was sprayed with liquid and clothes got soaked - husband got sprayed in the face. Another time the spray started and reached the sliding door but we were quick to close the door. Again, no warning. Don’t know what was in the water like soap or if it was just plain water.
We were not bothered by loss of view due to window washing equipment though.
the cabin itself was nice but the little chairs uncomfortable with no footstools.
Enjoy.