So ... slow work day? Every day?
That's all great stuff Beoric! The winds would provide options for movement...a lot to think on.I feel like they should naturally be falling toward the Elemental Plane of Earth.
However, I would look at it a different way. And I can't take credit for this, because it is an approach advanced by Keith Baker in the Eberron setting, but I like it very much. The planes are reflections and representations of reality. So the Plane of Air is about things having to do with air - being buffeted by winds, lightning storms, floating on a light breeze, the peace of a warm breeze, the deep chill of a cold breeze, or scouring erosion over time, depending upon where you are on the plane. Likewise, elementals are motivated to do those things that are done by the elements they represent, so air elementals can be playful and like to push and tug at things (unless they are angry, when they flatten and tear at things), and fire elementals want to burn things, and water elementals worry away and erode things and drown creatures, and earth elementals don't do anything quickly unless it is to grow things, or start earthquakes.
Falling is not an "air" thing, IMO. Falling might be something you would encounter on the Plane of Dreams, but not in the Plane of Air. Rather, in the Plane of Air you might float with no means of propulsion or steering, unless you can jury-rig a parasail out of a cloak and follow the winds, maybe even to somewhere specific if you can talk to them. And different parts of the Plane of Air might have different properties, so you might have the "Region of Eternal Storms" and the "Region of Poisonous Vapours". There might be earthmotes floating here and there, with their own gravity, but they would only exist to highlight the effects of air upon them, so you might get motes of scouring sandstorms, for example. And factions: there could be the "Breezes of Summer" or the "Winds of Bitter Chill". Imagine if your MU accidently summoned a Wind of Bitter Chill and was surprised to discover it was doing cold damage? Or a Breeze of Summer that could cast sleep spells?
The Plane of Earth could includes regions of solid stone but also regions of warm burrows, and regions of endless claustrophobic tunnels, and regions of lush plant growth, and regions of constant earthquakes.
The Plane of Water would have both surface and depths, regions of bottomless ocean and regions of sea caves and coral reefs, regions of calm water and regions of devastating waves. There would have to be some land, because otherwise what would water have to erode? The land could be tropical beaches, or rocky headlands constantly being worn away by the raging sea.
BTW, there are no planes of earth, air or water on Eberron, so all of that is fair game if you like it.
Perhaps. But if the adventurers choose to go there, surely they should prepare themselves? You don't leave a cache of lanterns and oil at the entrance of a dungeon in case the PCs forget to bring torches, do you?
Well, I see your point, but sometimes adventurers don't get to choose where they go and can't prepare.