Sentinel Beach is a location in The Precursor Legacy. It is a long beach stretched across a large tract of land south-west of Sandover Village, located around a large bay with an old tower at sea-mouth and old stone sentinels at the end of the beach. It consists of sandy areas and an elevated hill with flat grassy plains and small village huts, and is occupied by unique lurkers such as the lurker crab and sand worm, among others, and other fauna such as seagulls, a pelican, and a flut flut egg. It has a proliferation of green eco vents which Samos Hagai harvested for his experiments.