• Length: 36 km
• Elevation: Turnov – 260 m, Dubecko – 399 m, Kozákov – 744 m

Start the trip on the Náměstí Českého Ráje square in Turnov where you can visit the Regional Tourist Information Centre before your trip and obtain some current information. From the square, follow the main road in the direction to Semily but turn right on the very first crossroads and then to the left on the next crossroads. Now you are on the biking trail No. 4172 along which you will bike the first 7 km. The trail will lead you past the hospital premises out of the town. Along small district roads, you will pass three ponds and reach the Sekerkovy Loučky village. The first longish ascent starts behind it. Turn left along the biking trail No. 4099 at the edge of the Kvítkovice village. After 1 km you will reach the Dubecko hamlet where you can borrow the keys to the nearby lookout tower in the house No. 5. The lookout tower is a 50 m high pylon with a lookout platform at the height of 33 m. Even though the base of the tower is only at 399 m above sea level, you will have a surprisingly far-reaching view of the landscape of the Bohemian Paradise, of the distant Ještěd top and, mainly, of Kozákov which is only three kilometres away as the crow flies but is still located 340 m higher.

To avoid the main road and not to lose the arduously gained elevation, you will return from Dubecko along the same road on which you got here. However, follow it for only about 200 m up to the place where you will come across a tourist trail marked in blue, leading from Sedmihorky to Kozákov. Turn to it (to the left) and after biking for 1 km you will get to the crossroads where a rarely used little road, signposted to Kozákov, branches off from the main road. A six km long ascent awaits you here but you need not bike it all at once. The most suitable place to have a rest and get some information is the Kozákov village where the famous Votrubec Museum of Precious Stones is located. Nearby there is the no less known Votrubec quarry where some of the stones were found. After you have a look at them you will return to the saddle of your bike and ascend to the Bačov village. Turn left here along the biking trail No. 4006. You have 2.5 km left along this trail but it is not so steep any more. In Kozákov, you can find refreshment in the Rieger chalet which was constructed and has been run ever since by the Club of Czech Tourists. The metal hexagonal structure of the lookout tower reaches almost 50 m but the highest platform is not accessible to the general public because it is used by the Army of the Czech Republic. Tourists can walk along the gallery at the height of 24 m which is more than sufficient for the perfect panoramic view of the landscape. Panels with the relief of the landscape and description of landmarks on the horizon will help you find your bearings.

For the energy spent so far you will be rewarded with a long descent along the little road in the direction to Semily which is marked as the biking trail No. 4008. Go along it to the Smrčí village where you will turn left (biking trail No. 4175). You will have to go uphill until the Dlouhý village but again a long and pleasant descent to the Koberovy village awaits you there. In Koberovy, you will come across the main road from Železný Brod to Turnov. Go along it in the direction to Turnov. After almost a kilometre of a gentle ascent you will see the turn right to Loučky. Take it and connect to the biking trail No. 4099 in Loučky. This trail will lead you to the Klokočí village, surrounded by sandstone formations of the not very known but all the more interesting Klokočské Rocks. It is worth stopping here and visit at least the nearby Rotštejn rock castle.

From Klokočí, you will continue along the road which indeed leads to Turnov but encircles the whole massive of the Klokočské Rocks from three sides. This is a pleasant, gently descending section, which, in addition to that, leads through a forest. After about two kilometres of biking, a beautiful view of the Jizera valley, created by two sharp bends, opens in front of you. Let it be said that the nearby Zdenčina skála offers an even more breathtaking view. Soon afterwards you will reach a crossroads near the Rohliny village where you will connect to the biking trail No. 4006. It will safely lead you back to the Turnov centre.