Disclosed is a slide piece for a stowable bimini frame associable with a tower structure of a watercraft, the slide piece including a slide piece body portion, at least one frame association structure extending from the body portion, the at least one frame association structure being configured to slidingly associate the bimini frame with the slide piece body portion, and an affixing surface of the slide piece body portion, the affixing surface being positioned and configured for associating the slide piece body portion with the tower structure of the watercraft.