Gili Lawa Laut is the northern-most of two islands off the northeastern tip of Komodo Island. There are several dive sites around the island, and the bays on the north and south sides are a common overnight mooring place. The bays themselves are good night dive spots, where I spotted some harlequin shrimp as well as a few other interesting things.
Between Gili Lawa Laut and Komodo is Gili Lawa Darat, and between the two smaller islands is a narrow passage that is also a good dive site. This site is generally just referred to as "the passage." As you might expect, the currents in this area can be very strong, and it's best dived only at slack tide.
Lastly, off the eastern tip of Gili Lawa Laut is the Lighthouse dive site. Currents are also swift here, and you want to stay close to the wall to avoid being swept out into the open water. The current will slack a bit once you get into the shadow of the island.
Between dives, you can land on the island and make the short hike up to the saddle of the hills for a good view of both sides of the island, as well as the two bays.