Well... its hard to tell the land around the water from the picture. I have had to do some knarly off-roading on lakes to get a boat off the water before. Never for ice, but once because we ran out of gas, walked all the way around the lake to the truck and then went got on some steep rocks etc, but got the trailer in the water and boat up. Another time was because the ramp was ice and I just knew there was no way to get the truck back back up it if I had launched using the ramp. So I launched and loaded from a beach nearby that was flat. It looks like if you could get a truck on that dirt area in the bottom left of the photo, you could get the boat into the broke up stuff and like you said, just get it close and use the winch strap to get it back on the trailer.I'm curious how folks here would go about trying to get this boat, I'd be tempted to try winching it from shore. Of course that assumes good access and it's not too far plus the ability to connect it up.
During covid, all lake ramps were shut down. There was a couple who owned a point on one of the best lakes in the state. They opened their gates and put $5 access fee. All you had to do was drop $5 in a bucket, take their home made slip and write the date on it and leave it on your dash. They made a bunch of money doing that. No boat ramp, so we all had to launch form the beach. I did that all summer long and had no issues. A couple big boats got stuck in the mud trying to get out, but little tin boats, I could just wench it up on the trailer if I could only get half the trailer in the water.