Boat plans in book form. concise step by step instructions to build a 20 to 24 foot plywood / epoxy stitch and glue skiff. Darkwater skiff model. the darkwater skiff is named for the deep black water rivers of sc, such as the edisto, which run through rich organic soils and abundant cypress knees.. Free boat plans from "science and mechanics", "boat builder handbook" and other very old magazines. trouble viewing? try the low band width index.. boat plans from science and mechanics and boat builder handbooks..