I did the Karst & Coast Mystery Tour and highly recommend traveling with Roundabout. Tour was very well organized and there is no way I could have seen all these things in one day on my own. Our guide Darja was great – very knowledgeable and fun and offered flexibility to the group. Highly recommend Roundabout – well worth the money. Also they were great on communication beforehard to arrange the meeting point and confirm my reservation. lmeyer523, TripAdvisor