With the emotional moment of Rey offering Anakin Skywalker’s lightsaber back to Luke, and Luke looking like he already knew who she was, there wasn’t an opportunity to identity where they were, but now the name of this planet has finally been revealed: Ahch-To After completing the map leading to his whereabouts, Rey traveled with Chewbacca and R2-D2 to a mysterious planet and found Luke on an island, where he’s been chilling all by his lonesome for many years. Although Luke Skywalker’s presence was felt throughout Star Wars: The Force Awakens, he wasn’t actually seen until the movie’s final minutes.
