BHI is an unique place with much to do, and Old Baldy is top of the list. For less than a cup of coffee at Starbucks you can gain entry into the historic lighthouse center which includes a small but very informative museum about the island and the lighthouse as well as access to the lighthouse itself. The climb up is worth it as the view is incredible. You can imagine Blackbeard pulling up to fix his ship before off again. A fun little excursion.