Transmission Breathers

Hi all,

I have a 2015 Scout which gets well used in The Lakes where I live and a lot of use in the Highlands. The roads flood a lot where I live and I regularly drive through a Ford to access a field where the Mrs keeps her horse.

I started to wonder about the breathers on transmission/diffs/Haldex etc

Does anybody have knowledge of which of these have breathers and where they are routed, how high etc?

Do people think there is much chance of them taking in water from my use of the vehicle?

I've seen diffs ruined on transits years ago from just this.

Anybody know how easy it would be to extend and elevate these breathers?

Many thanks