How to refinish a plywood floor?

[Boracay]

I like the traditional look of alternate dark and light wood. Thin light and wide dark.
I'd see if I could find a cabinet shop. Remove the soles take them to them. Thay should have a specialised sander that they use for tables. Get them to sand the soles flat.
The cabinet makers will not understand epoxy, so glue the alternate dark and light strips yourself.
Then take the soles back to the cabinet works and get them to sand the soles smooth.
Apply the required number of coats of two pack polyurethane, making sure all wood is properly coated.
Put marine carpet and metal treads down in heavily tracked areas.

[Raven]

One of the best resources I've found for all brightwork tasks is Rebecca Wittman's book, "Brightwork: The Art of Finishing Wood". Not only does the author thoroughly cover all aspects of refinishing brightwork, but it is a very enjoyable read with beautiful photos. There is a chapter on refinishing cabin soles included.