Natural Wonders # 2 - Adršpach-Teplice Rock Towns, Czech Republic

The fantastical rock formations of Adršpach-Teplice are undoubtedly one of the most unique natural attractions the Czech Republic has to offer. Tucked away in a quiet corner in the north of the country near the Polish border, the two 'rock cities' receive far fewer international tourists than they deserve. There are several different locations scattered around the Czech Republic which can boast bizarre limestone rock formations (The Czech Paradise, Bohemian Switzerland National Park, Kokořinsko) but those found near the small villages of Adršpach and Teplice nad Metuji are probably the most impressive when taken as a whole.

To give an idea of the scale and appearance of these 'rock cities', imagine walking through a canyon just a few metres wide where pinnacles of stone rise like office towers on all sides, some of them reaching up more than 25 metres with trees clinging to their sides. A unique ecosystem exists in these clefts between the massive stones, attracting large ferns and unusual plant formations which thrive in the cold, damp environment. The paths along the canyon floors will lead you across tiny streams, past raging waterfalls and up and down a series of metal ladders attached to the rocks.

The stone formations that tower above you often have shapes that resemble objects or human figures, hence they have been given colourful names such as 'The Dwarf', 'The Lovers', 'The Mayor and His Wife', 'Smetana Playing the Piano', 'Grandma's Armchair', 'Goethe's Table', and 'Butcher's Axe'. The trails are well-marked and don't involve any difficult climbing or scrambling, so people of all ages can be seen walking among the stone formations.

Between the two rock cities there is a small lake where rafts are waiting to ferry visitors across to the other side. The oarsmen who steer the boats sing traditional songs and tell jokes to entertain the passengers during the crossing. One of the most memorable portions of the trail is the region called 'Siberia' in the Teplice rock city. The name is fully appropriate since this is the coldest and narrowest of the canyons, with blades of rock soaring up on both sides so that little light reaches the path floor. Ferns grow out from every surface reaching for the sun far above.

It is possible to see the best stone formations in both rock cities in a long day if you start early enough. Both are equally worth visiting, though perhaps Adršpach has a slightly more impressive set of geological oddities. A route starting from the train station in Adršpach leads past a small lake and then follows a green-marked path into a pine forest before emerging in a grove with the first of the formations.

A circular loop path takes in the best of the Adršpach rocks and can be completed in one or two hours depending on your pace. A yellow-marked path connects the two rock cities, while a blue-marked trail makes a loop that includes the highlights of the Teplice formations.

Along the Teplice trail it is worth making a diversion up a series of steep ladders to see the remains of a rock fortress called Střmen which was built by Hussite soldiers.

An ideal place to finish a walk is at Teplice nad Metuji Skaly, where there is a train station as well as a number of good restaurants and hotels. A plentiful assortment of accommodation and eating options can also be found in the village of Adršpach.

The rock cities are typically packed with Czech, Polish and German tourists during the peak summer months, but if you can visit in the off-season times of early spring or late autumn you'll be able to experience the walk with less waiting time at ladders and narrow sections of the canyons. Visiting in winter is also possible, when the canyons take on a completely different appearance under a heavy blanket of snow.

Natural Wonders # 1 - Bohemian Switzerland National Park, Czech Republic

The Bohemian Switzerland National Park is a region of stunningly sculpted sandstone cliffs and towering columns of rock punctuated by deep, forest-covered canyons. Located in the north of the Czech Republic along the German border, the name for the park was coined by 19th-century artists who appreciated its romantically unique atmosphere (even though the non-alpine landscape doesn't resemble Switzerland). A major highlight of the park is the Pravčická Brána, a natural stone arch which is the largest on the European continent.

Directly below the arch is the Falcon's Nest, a 19th-century chateau which now features a small museum about the park as well as an excellent restaurant with great views from its balcony. An entrance fee is charged to get close to the arch, but it's well worth the price for the chance to climb the series of stairs that leads to the view point above the arch on the opposite cliff face. From there you can look back all along the valley to see the many sandstone outcrops that rear up out of the forest floor at regular intervals. A great day hike begins in the village of Mezní Louka, which is accessible from the city of Děčín by bus (Děčín can be reached by regular train from Prague). From Mezní Louka, a red-marked trail leads up to the foot of the sandstone cliffs and along a ridge with spectacular lookout points on rocky promontories. After 4.5 kilometres of walking, you will see the arch of Pravčická Brána appear above you on the sandstone plateau. It's a short climb from there to reach the Falcon's Nest chateau.

After you've had time to walk below, beside, and above the arch and enjoy a meal on the terrace of the restaurant, you can continue further west along the red trail, which heads down a steep valley with many shallow caves lining the cliffs. You will come to the main road through the park after 2.5 kilometres, from where you can catch a returning bus to Děčín. Alternatively, continue walking west along the road on the red trail for another 2.5 kilometres until you reach the border village of Hřensko, a pretty settlement of timber-built houses that sits in a sandstone canyon surrounded by tall pinnacles of stone. Another worthwhile route involves heading south-east from Hřensko along the narrow canyons of the Kamenice river gorge. It's possible to continue by raft along the river through the tightest stretches of the gorge, where the cliff walls are just five metres apart while they extend upwards above you by over 100 metres.

The park can be visited as a long daytrip from Prague by taking a train to Děčín and then a bus from outside the train station to Hřensko or Mezní Louka. It's worth staying for two or three days to get a chance to fully experience the park, and there are regions to the west of Děčín with further sandstone formations which are equally impressive as those inside the park.