The oldest neandertal site dates to at

Pieces of evidence excavated by archaeologists and anthropologists suggest that the oldest neandertal site dates from 350,000 to 600,000 years ago. In addition, the earliest Neandertals believed to have existed to Eurasia according to its lead archaeologist Thomas Higham from the University of Oxford.

No it isn’t. Besides from sitting on a old tectonic plate, the island is pretty much just a regular island.