Each of these moons is a Lehrer Planetoid.  And each is named after the Elemental Wing of the Throne of the Elemental Titans that exists on it.  Each Wing of the Palace has a High Dock for flying creatures, items, and ships; that move between planets. these are not the only docks on the planetoid, but in most cases the only ones known.  These docks have the ability to translate the Character into a "native" that is able to survive in the Elemental environment while they are there.

Characters that have an elementally Tainted bloodline find that they can survive there no matter how they get there. As a matter of fact many elemental portals into the ethereal exist connecting like elemental planetoids, to each other through such elemental paths (the blood tainted have no trouble), but these are blocked to most regular folk.  Those who are blood tainted must be cautious about using the paths as while There a holder of an elemental throne may treat the character as if undead turning any tainted non-throne protected character of other element and if the same may command or rebuke the character.