These two peaks are among the most sought-after and popular climbs.
You will start the climb from Gaderská dolina. Take the asphalt road towards the ruins of Blatnický hrad, until you reach the Mouth of the Vápenná Valley. From there, continue along the blue mark.
You will be surrounded by beautiful rock overhangs and terraces. The biggest attraction of this road and Vápenná Valley, however, is the Mažarná cave, which is located about halfway up the Tlstá hill. The Mažarná cave is one of the largest in the Veľká Fatra, with a beautiful and at the same time impressive entrance gate almost 130 m long. The cave is not only interesting for its shape, but also for its significant archaeological discoveries. They found the remains of a cave bear and evidence that the cave was inhabited by humans in the Neolithic period.
On the way to the top, notice the sign Tlstá and you will find out what it owes its name to. It is a massive hill with a large meadow, which is held by huge rocks.
From the top itself you will see the entire Turčianska kotlina, Malá Fatra with all the peaks such as Kľak, Veľká lúka, Malý or Veľký Kriváň
From Tlsta you will notice a rock, it is said that Ostrá has one of the most beautiful rocky peaks not only in the Veľká Fatra, but in the whole of Slovakia.
You will take an approximately 30-minute walk along the ridge to the Ostrá peak, the route is marked with a green sign. In places you will walk along a narrow path and all the hills will be below you. A beautiful coniferous path with a gentle descent will take you to the eastern part of the Zadná Ostrá peak, from which you will continue to Ostrá, which is just a jump away.
The final ascent to Ostra is a rocky climb connected by a chain link walkway. Then you will reach a rocky window that you have to climb through.
