The issue of the boat blowing away faster than you can swim has come up before. Many of the old-time cruisers would drag a light line in the water behind them. Some would even tie a small float on the end.

Even if you were double-handed, one of you could become separated from the boat and the other not be able to right it alone. Trailing 50 feet of polypropylene could save your life or at least make it easier.



As I recall:

The mainsheet on the Hobie 21 SC attaches to the end of the boom, much like the post mount at the mast end. The H21 boom is relatively short. This allows it to spin like a window shade. I don't remember if the main slides in a track on the boom like the Hobie 16.

Since many other boats use a section with a sail track for a boom, you could probably make a furling boom cheap and fit a sail to it.