in 1979, funding was received to preserve the site as a tourist destination, due to its historical significance. the "working" elements of the port arthur community, such as the post office and municipal offices, were moved to nearby nubeena. several sandstone structures, built by convicts working under hard labour conditions, were cleaned of ivy overgrowth and restored to a condition similar to their appearance in the 19th century. buildings include the "model prison", the guard tower, the church, and the remnants of the main penitentiary. the buildings are surrounded by lush, green parkland. the mass graves on the isle of the dead also attract visitors.