I visited Трявна twice during my service. The first visit was only for a couple hours, and half the time was spent eating lunch. The second visit coincided with our close of service conference, and there wasn't much free time to explore the town. It's a very relaxed place which I wish I would have gotten to know better. Among other things, it's home to a small, Belgian micro brewery, which produces some of the best beer brewed in Bulgaria.