The Fallen Lighthouse is a location in Bleak Inlet, notable for being featured as the thumbnail picture for the region in a lot of iterations. The lighthouse wouldn't serve as a good safehouse, as it isn't an enterable location (It does not present a loading screen upon entering), and it doesn't have a bed. It is conveniently positioned near the Cannery Worker Residences - a good safehouse, and its six-burner stove makes it a convenient location for efficient cooking in the region. Nearby some deer and rabbit spawns can be found, making it a good place to spend time in the region, while spending the night somewhere else.
The Fallen Lighthouse provides a good view of the player's surroundings, only bested by the radio hut on the mountain. Although the location and terrain around it would make for a good safehouse, it might be challenging for the player to make it through a night there, as the nights can get very cold and timberwolf attacks are possible.
Aside from this, It makes a somewhat good location for a base of operations, only sleeping somewhere else might be required.