By Kevin Wilkerson, PubClub.com Travel Editor At first glance, it was intimidating. Nearly a mile up in the air, the only thing separating me from the rocky bottom of a mountain was a curved piece of glass. Far down below lay the area of Makarska in Croatia. I was at the  Biokovo Skywalk, a walkway 1,228 meters (more than 4,000 feet) up in the Biokovo Nature Park. It is … [Read more...]