If you are in Karlovary Vary just for one day, simply walk along the small Teplá river and enjoy the parks and colonnades. You can enjoy a view over the valley from the Rozhledna Diana (Diana observation tower), accessible on foot and via ropeway. In the Vřídelní (Sprudel) colonnade you can admire the hottest spring (72 degrees Celsius). Every minute, some 2000 liters come out from a layer 2500 meters deep with a fountain that shoots up 12 meters. The building housing the spring is comparatively new. Inside the hall you can pull a cup of water by yourself from different taps with different temperatures. Among the most impressive colonnades, the Tržní (market) colonnade and the Mlýnská (miller) colonnade should be mentioned - both are quite old and charming. The whole town is car free which is rather nice.