Abstract: A floating swimming pool apparatus includes a rigid water retaining portion which includes rigid walls and a rigid floor. A peripheral deck portion is connected to top portions of the rigid walls, and a plurality of individually adjustable drum-like container are connected to the deck portion. Each of the drum-like containers includes a fill port through which a quantity of ballast material can be added to or removed from the drum-like container. The preferred ballast material is water. A layer of flotation foam material attached to exterior surfaces of the rigid walls and the rigid floor of the water retaining portion. Inner joists are connected to the deck portion proximal to the rigid walls of the water retaining portion. Outer joists are connected to the deck portion distal to the rigid walls of the water retaining portion. Each of the adjustable drum-like flotation assemblies is suspended from the deck portion by a suspension band connected to a respective inner joist and a respective outer joist.