The term 'Shipwreck Divers' Mecca' is a reference to the city of Erie, Pennsylvania. Located on the southern shore of Lake Erie, the city is known for its many shipwrecks, which have become popular destinations for divers from around the world. The city's location on the lake makes it an ideal spot for diving, as the lake is relatively shallow and the visibility is often good. The city also has a rich maritime history, with many ships having sunk in the area over the years.