Transmute Terrain

Choose two points of natural land that you can see within range. Each point becomes the center of a 15 foot square that magically transposes to the others location. Creatures, objects, and manmade structures are not teleported in this way, only the land itself. This effect can be reversed by the dispel magic spell within 24 hours, at which point the change becomes permanent.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the size of the squares both increase by 5 feet for each slot level above 3rd.