A lagoon is seen in the video game Lost: Via Domus. The lagoon contains a dock, the creator of which is unknown. Locke was waiting for Elliott at the dock, and he killed the Other and prevented him from destroying the Via Domus with a Molotov cocktail. It is unknown why Locke was at the lagoon, or how he knew about it. It is also unknown why the sailboat was at the dock. The dock has many crates and barrels that may have been used for storage. There are also three fishing boats stored at the lagoon, but it is unknown who they belong to. It is probable that the dock was constructed by the DHARMA Initiative, since it is similar to the harbor and the Pala Ferry pier.
Elliott was instructed by Juliet to go to the lagoon and escape on the Via Domus. Elliott encounted Locke at the dock, and then escaped the Island on his sailboat.