Derelict vessels are boats or ships that have been abandoned and left to deteriorate. These vessels can be found in various bodies of water, including oceans, rivers, and lakes. They often pose environmental hazards, as they may leak fuel or other pollutants into the water. The presence of derelict vessels can also create navigational hazards for other boats and ships. Local governments and organizations often work to remove these abandoned vessels to protect marine ecosystems and ensure safe navigation. Efforts may involve salvage operations or environmental cleanup initiatives.