You specify a point on a surface that you can see within casting distance and cause that point to appear as a channel continuously until the spell terminates. The selected surface must be wood, gray, or stone (such as a wall, roof, or floor). The size of the opening is up to you: it must be at most 5 feet wide, 8 feet high, and 20 feet deep. In addition, the channel does not destabilize its surrounding structure.

Passwall 5e

Level: 5th

Classes: Wizard

Casting Time: 1 Action

Range: 30 feet

Components: V, S, M

Duration: 1 hour

When the opening disappears, any creature or object remaining in the channel is safely ejected into the unoccupied space closest to the affected surface.