There is provided a floating solar exposure optimization apparatus comprising: at least one vessel, each including at least two compartments, each of the compartments being configured to be able to vary its buoyancy; at least one solar energy collector being mounted to the at least one vessel; and a central axle including a resting portion at each end, the central axle being mounted to the at least one vessel. It is advantageous that the variation of the buoyancy of each compartment enables a tilting movement of the at least one solar energy collector when the apparatus is placed in water.