A retrofittable float with an underwater camera attachment for unmanned aerial vehicles allows an unmanned aerial vehicle (UAV) to traverse over a body of water while recording images and/or video of the underwater environment. The retrofittable float with an underwater camera attachment includes a flotation device, a plurality of mounting brackets, an underwater scope, and at least one underwater illumination light. The flotation device attaches to the UAV via the plurality of mounting brackets. The plurality of mounting brackets is configured to align the center of gravity of the UAV with the center of buoyancy of the flotation device, thereby reducing the risk of capsizing. Once securely mounted, the camera of the UAV is positioned pointing into the underwater scope. The underwater scope allows the camera to record images and/or videos of the underwater environment. Finally, the at least one underwater illumination light is used to increase visibility.