COVER STRUCTURE

A cover structure of an upper unit in which a power source of an outboard motor is provided, the cover structure includes a main body cover including a pair of divided covers connected to each otter, the pair of the divided covers being configured to be divided into each other in a left-right direction with respect to a traveling direction of a boat, an attachable and detachable cover that is attachable to and detachable from a part of an outer surface of at least one of the pair of divided covers and that includes a light transmitting portion in at least a part of the attachable and detachable cover, the light transmitting portion configured to transmit light, and a light emitter that is provided at a mounting position of the attachable and detachable cover and that includes a light source.