The oldest Jewish cemetery in Curaçao is Beth Haim. The oldest readable tombstone is dated to the year 5428, which by the gregorian calendar is 1668 CE. There may well be older stones that can no longer be read. No graves have been added to the cemetery since the refinery went in. It’s open to the public, but no one except refinery employees are allowed past that point. See pictures and a video of the Beth Haim cemetery at Curaçao for 91 Days.