The lighthouse
The old lighthouse still stands on the island, but it is no longer in use. The actual light comes from the unattractive light bulb on a steel tower right next to the original structure. A small cemetery, including the graves of the lighthouse keepers wife and daughter are nearby. The residences used by the light keepers are now converted into staff residences, and are inaccessible to visitors who take notice of the signs, but can be seen from the path, and from the air
The power scheme
If you are fed up with nature, take a look at the solid/diesel power scheme that keeps the place running. The solar panels are by the runway, the diesel generator underneath. The island desalinates its own water for showers and human consumption.