The tours are offered as a City tour and a Tour of the old town. I did both the tours, they were well organised, easy to find in the main square (at the top of the stairs - see the website for instructions). The tour guides were both very knowledgeable and spoke English very well. Despite slightly frosty conditions, the tour was entertaining and highly recommended. As the name suggests it is a free tour, however as the guides are not paid for their time and tip is recommended.
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