What is the disadvantage of sea turtles having a shell?

While a shell provides sea turtles with protection from predators, it also has disadvantages. The shell makes them less flexible and agile in the water, which can hinder their ability to escape threats quickly. Additionally, the shell's weight can make it more challenging for them to navigate shallow waters and beach areas, especially during nesting. Lastly, a hard shell limits their ability to camouflage, making them more visible to potential predators.