So if I had a canoe floating in the water on earth it would sink lets say 4 inches down. Now I take that same canoe with the same mass and put it in a lake on the moon, suppose the moon had a lake . Wouldn't the canoe also sink 4 inches down on the moon . Assuming the canoe had the same mass and was in water both times. And I was wondering could their ever be a Gravitational field where it was strong enough to sink the canoe besides a black hole. Will the canoe sink the same depth in all G fields.