Abstract: A multi-purpose shelter includes a covering fabric, a first rod member, a plurality of loop straps, a plurality of cords and at least a weight member. The covering fabric has a plurality of side edges, and a first pocket extending along a transverse direction thereof. The first rod member has a forward end, a backward end, and a main portion extending between the forward end and the backward end. The main portion passes through the first pocket of the covering fabric, and is folded to form a curved contour between the forward end and the backward end to be erected on a support surface. Each cord connects the covering fabric to a support surface in a stretched manner. The weight member is detachably attached on one of the forward end and the backward end of the first rod member for providing a secure support to the multi-purpose shelter.

Abstract: A portable cover structure includes a pair of flexible poles that are disposed in a generally parallel fashion, and a sunscreen that is attached to the poles on opposed sides thereof, so that the sunscreen is stretched between the poles. One end of each bendable pole may be removably attached to a structure, such as a dock, and the other end of each pole is preferably connected to an adjustable strap or cord. The distal end of the strap or cord may be attached to a dock, a cleat or a boat, and may include a snap-fit mechanism for such removable attachment. The cover structure may alternate between a first position over a dock and a second position over a boat, as desired. When not in use, the portable cover structure may be disassembled and stored in a bag or container.