This $40M Greek Private Island Has Been in the Same Family Since 1961

For more than 60 years, Argyronisos has remained largely unchanged. The 60-acre private island in Greece‘s northern Aegean Sea has served as a family retreat, an organic olive farm, and, more recently, a wellness destination, all while operating almost entirely off the grid.

Now, after more than six decades under the same ownership, the island is entering its next chapter. Listed by Engel & Völkers Greece, Argyronisos—also known as Silver Island—is one of a small number…