When an earth pony that loves the sky meets a pegasus that loves deep waters, the land of Equestria has to ask itself "what the Tartarus, nature?".

Looks like the sky and/or earth pony, Contrail, has devised his own deep-sea diving outfit. All to spend a little time with the ocean floor-walking pegasus, Crash Dive. Looks like it's all fun and games until one of them realizes that their calculation for air pressure at 30,000 feet don't quite add up well to pressure under the ocean. Can you guess which pony got it wrong?

Doesn't actually matter. Putting two grey/pink ponies in the same square mile of each other must have some sort of benefit.

This work included  turanic 's pony oc, Crash Dive. Let her help you in your deep-sea diving adventures. It's a really good idea, because under the water only being with ears designed to hear under said water can hear you scrunch-face. Owo