The sad truth is that yes, a tortoise is likely to drown in the water. They just aren't designed to swim well, if at all. There is a slight chance that a tortoise may survive an accidental dip in the water, but the conditions must be just right. For example, a tortoise thrown into the ocean will probably drown.

Can my tortoise drown?

Is The Turtle Or Tortoise Drowning? Because turtles have lungs and breathe air, they can drown. Believe it or not, there are reports of turtles and tortoises drowning in a shallow pan of water. If you think your turtle has drowned, the most important thing to remember is not to turn the turtle upside-down.

Can tortoises breathe underwater?

Can Tortoises Survive Underwater. The short answer is “no”. Although sea turtles have evolved to hold their breath for as long as seven seven hours, most land-dwelling tortoise species cannot hold their breath for more than a few minutes and will drown if left in deep water for very long.