Friends of Virgin Islands National Park and other organizations have teamed up to continue groundbreaking work "virtually" preserving historic structures in Virgin Islands National Park on St. John highlighting a pioneering technique that uses 21st Century technology. The public is invited to attend free presentations at 11 a.m., on March 10, at Leinster Bay Ruins and at 11 a.m., on March 13, at Cinnamon Bay Archeology Lab on the beach at Cinnamon Bay on St. John.