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Our trip begins in the small border village of Mníšek. Here, as early as in the year 1425 a Customs Office - working for the Mostecký Castle, was established. When in Mníšek (754 m) you cannot miss the dominant sight on the German side, the church in the town of Deutscheinsiedel located near the border crossing. From here we will follow the red ski sign going towards Kostelní cesta (Church Road - 2.5 km). From the beginning of our trip we will be walking over a meadow going slightly uphill /1-2/ until we reach a forest where we begin with a slightly steeper climb /2-3/. Kostelní cesta (810m) (Church Road) we will come out of the forest along the road. Now, our red sign will turn to the left and into a pine forest. Going on a beautiful trail and passing by the 7th stop of the Nature Educational Trail called the Flájská hornatina - Houby (Flájská Heights - Mushrooms) we are slightly descending /2/ through the picturesque valley around us (2 km) towards a place called the místo desítky (tenth place) (the 8th stop of the Educational Trail Flájská Heights – Nature Protection). Now, we can enjoy a perfect 4.5 km long cross-country skiing trail going through young pine woods, which will take us later to the top of the mountain ridge. Here, we will be riding almost continuously on a flat plain, except for a less than 1 km long elevation /2/, which will take us to the Pestrý peak (871 m), until we reach Jelení hlava (Deer's Head) (874 m) - the 9th stop of the Educational Trail Flájská Heights – Fauna/Animals. While travelling along the ridge from the Pestrý peak to Jelení hlava (Deer's Head), we can enjoy distant views of the České středohoří (Czech Central Mountains) created by volcanic activities. From the ridge we will take a 1.5 km long sharp descent /3/ into the deep valley of the Pstružný Creek, where we may get a glimpse of the Valdštejn's hunting lodge located on the opposite slope. Pstružný Creek (10th stop on the Educational Trail - Flájská Dam) we are going mostly down /1-2/ along the creek separating the Czech Republic from Germany (4.5 km), until we reach Český Jiřetín. Česky Jiřetín was founded before the end of the 16th century as a wood and lumber processing village. People in the village lived primarily off timber floating using the Flájský Canal. Later the timber industry expanded and production of toys and souvenirs began. In the lower section of the village you will find a wooden church of Jan Křtitel (John the Baptist) (a monument from the 17th century) transferred here in 1969 from the flooded village of Fláje. When we were arriving to Č. Jiřetín through a cottage settlement, we could notice a sharp right turn behind the first ski-lift. We take this turn and climb up to reach the upper ski-lift station /3-4/. From here we can take the cross-country ski track, which goes through the woods and around the Jestřábí (Hawk's) Peak (818.4 m), towards the Valdštejn (Lichtenvald) Chateau. After a 2 km long climb (at the end of the climb the slopes gets steeper /2-3/ but the rest of the climb is between /1-2/), we will reach the Bradáčov peak (876.3 m) and the Lichtenvald Hunting Chateau (Valdštejn Chateau). The chateau was built during the 1760s on the Hornolitvínovské estate, which belonged to the Counts of Lichtenvald. It is a complex of well-preserved late Baroque buildings located around the oval courtyard, which have kept their original appearance until the present day. The simple hunting chateau was used for hunting grouse, deer and other game living in the surrounding woods. Today it is used by hunters as a hunting cottage. From the chateau we will go down /2/ for about 2 km towards a road going from the water reservoir Fláje to Mníšek and the town of Litvínov. Here, we must take our skis off and walk about 1.5 km on the road towards Mníšek. When you see the second right turn leading to a forest path, take it. Now you can take a ski track and after a short while you will reach Jelení hlava (Deer's Head). To reach Jelení hlava, we must undergo a short climb /2-3/. To go back we must follow the red sign route, which already known to us. After we complete our ride down /2/ from the ridge, a short distance behind a brick house we will turn left and join a cross-country skiing trail outside of the red sign direction. The skiing trail will take us around Černý rybník (Black Pond) to the "tenth place", where we join the red sign again and go back to the 7th stop of the Educational Trail Flájská hornatina (Flájská Heights). From here we follow a straight ski trail (outside of the red sign direction) and take a downhill ride /2/ around an old water treatment station and back to Mníšek. Total length 30 km.