 The hunt for treasure got so extensive that in 1965 a causeway was built from the western end of the island to Crandall's Point on the mainland, two hundred metres away in order to bring heavy machinery onto the island.Oak Island has had several different recent owners which include a treasure hunter named Dan Blankenship, who initially partnered with "Oak Island Tours Inc." run by David Tobias.Oak Island Tours eventually dissolved, and in February 2019, it was announced that a new partnership had been formed with a company called the "Michigan Group".