What the Dempsters recorded was real, even if their framing was their own. The practice they observed traced a genuine cultural frontier across the southern coast, the meeting line of two distinct Aboriginal worlds, the Ngadju to the east and the Noongar to the west. The brothers reached for the only comparison their education offered, the circumcision of the Israelites in the Hebrew tradition, and so a corner of the Australian coast acquired a biblical name from the Old World. It is a small, strange monument to the moment two ways of seeing the land brushed against each other, and to a borderline far older than any European had drawn.

For a few decades, this remote bay was wired to the rest of the planet. A telegraph station was established here around 1877 as part of the East-West line that finally connected Western Australia to the eastern colonies, ending the isolation of a state cut off by a thousand kilometres of desert. The original timber buildings were replaced in 1896 with grander stone ones designed by the colonial architect George Temple Poole. Ships of the state steamship service called here on the South Coast run, and from 1885 to 1927 observers recorded the weather, making Israelite Bay a fixture in Bureau of Meteorology reports, a named dot that mariners and forecasters watched for decades. Then the line moved north, the station closed around 1917, and the wire that had tethered this place to the world fell silent.

What remains now is a ruin, and a beautiful, melancholy one. The stone walls of the telegraph station stand roofless against the sky, slowly surrendering to a century of salt wind off the Southern Ocean. Nearby lie the foundations of an 1884 cottage and two small graveyards, where telegraph operators and other settlers who lived and died at the end of the line are buried, their graves among the few human marks in an immensity of scrub and dune. The National Trust has worked to stabilise the ruin rather than restore it, leaving it as a stabilised shell, a place that tells its story precisely by being half gone. The people who staffed it were real, far from home and family, keeping the wire alive in one of the loneliest postings in the colony.

Israelite Bay sits inside the Nuytsland Nature Reserve, which swallows nearly the whole locality, on the western shoulder of the Great Australian Bight east of Cape Arid. Twenty-five kilometres west lies Point Malcolm and its long sandy beach. Offshore scatter the Eastern Group, the outermost islands of the Recherche Archipelago, identified by Matthew Flinders as he charted this coast in January 1802. For most travellers Israelite Bay is the literal end of the road, a remote four-wheel-drive destination where the continent's southern edge turns wild and the only sounds are wind, surf, and the slow collapse of old stone. It is the kind of place that rewards the long, rough drive to reach it with something rare: genuine solitude at the edge of an ancient coast.