Comparison of water and air transport?

Water transport and aviation have their advantages and disadvantages compared to each other, but at the same time they complement each other. For example, watercraft cannot travel as fast as aircraft due to the higher density of water. Therefore, the distance that an aircraft covers in a few hours, a large ship travels in a few days. However, ships can be much larger and more capacious than airplanes, and are more economically advantageous for transporting large loads.