It is not clear what "retractable" means. The illustrations show that one can adjust the ladder up or down one foot. Is it also possible to pull the ladder up out of the water when temporarily not in use, while leaving the frame bolted to the dock?
I have a floating dock that sits on the ground at low tide. I have to have a ladder that can be pulled up and locked into place when not in use to prevent it blowing back into the water when I'm not there. How easy is it to retract this ladder when not in use?