Abstract: A storage structure for being used both as a container for storing a liquid and as a supporting structure for supporting an entity such as an object or a person. The storage structure includes a base wall, a substantially opposed top wall and a peripheral wall extending between the base and top walls. The base, top and peripheral walls together form a liquid tight platform enclosure encompassing a liquid storing volume. The storage structure also has an inlet aperture and an outlet aperture both extending through the platform enclosure substantially adjacent respectively to the top wall and the base wall. The inlet and outlet apertures both establish fluid communication between the liquid storing volume and the exterior of the platform enclosure for respectively allowing filling and emptying of the liquid storing volume.