Casting Time 10 minutes
Components V, M (amber dust to cover circle worth 1,000 gp)
Range 0 ft.
Effect 5-ft.-radius circle that teleports those who activate it
Duration 10 min./level (D)
Saving Throw none; Spell Resistance yes
You create a circle on the floor or other horizontal surface that teleports, as greater teleport, any creature who stands on it to a designated spot. Once you designate the destination for the circle, you can’t change it. The spell fails if you attempt to set the circle to teleport creatures into a solid object, to a place with which you are not familiar and have no clear description, or to another plane.
The circle itself is subtle and nearly impossible to notice. If you intend to keep creatures from activating it accidentally, you need to mark the circle in some way.
Teleportation circle can be made permanent with a permanency spell. A permanent teleportation circle that is disabled becomes inactive for 10 minutes, then can be triggered again as normal.
By the way…
Because ships are constantly in motion, the caster of spells of the teleportation subschool must have line of sight to teleport onto a ship. Otherwise, a caster must scry upon a particular ship first, then immediately teleport to the scryed destination. Any delay in casting means the ship has moved from its scryed location and the spell fails.