Terminac is a port city that was visited by Sir Johan and Peewit in the animated feature film "The Smurfs And The Magic Flute". Matthew McCreep had set sail to a remote island from Terminac in order to raise up an army with which he could take over The King's kingdom. Sir Johan and Peewit followed Earl Flatbroke to the island, disguised as sailors, and there confronted both he and Matthew McCreep in order to get the magic flute (and the stolen valuables) back from him.
The seaport is referred to as Trominack in the original comic book version of the movie's story as well as in the United Kingdom English dub of the movie.