In addition to a reliable underwater camera, there are a few essential accessories that can enhance your underwater photography experience. These include underwater strobes or flash units for illuminating subjects in low-light environments, dome ports for capturing wide-angle shots with reduced distortion, external filters for color correction and enhancing visibility, and buoyancy control devices to help maintain proper depth and stability while diving. It's important to choose accessories that are compatible with your camera model and meet the demands of your underwater photography goals.