Caves are all Water Filled

On Minecraft bedrock be it Windows 10, IOS, Android any cave that is generated with the mouth intersecting the ground at y=63 will be waterlogged. We believe it is being treated as an opening like a river or an ocean and therefore will be waterlogged. This is for all caves that open to the surface. If a cave does not open to the surface it will not be treated as an ocean and therefore not be waterlogged