I don't know for Sure if this works, but here is an actual spell I came up, inspired by devonapple's thread about a bridge spell a while back.
If you want the full info, just give me a holler, and I'll go find it, these are just the cliffnotes pretty much, hehe...
Its a two spell process, evocation by the way. The first spell is lighter then the first one, an earth spell that gathers a great amount of magnetic energy and atmospheric particles, placing the aspect of "The Aurora" on the zone border, between where you are and need to go. The second spell uses the first spell as an invoke, and places another aspect on the zone, "Bridging the Gap", which is the one that I then Invoke for Effect to allow passage for your and your group. The second spell is a doozy, but I think its somewhat similar to ((book 9??, White Night))
how harry maybe made the water freeze for intent to use as a bridge to the shore/pier, i forget which...