Rakov Skocjan is the Karst valley of the brook Rak. The Big Natural Bridge is the remainder of the cave roof from the distant past, when the entire stream of the water was under the land. The central part of the valley, where the sank began, is the oldest. In the original and sinkhole part is the melting of the rocky stratums continuing. The bridge is built from beautifully stratified limestone, which was taking shape in the bottom of the former sea more than 100 million years ago. The strong tectonic powers lifted this stratums and juted them out. The lower, mechanically crushed part of the fault water later excavated and shaped into the present image. On the wall can be seen expressive black, yellow and red spots. These are different sorts of algae and crust lichens, who can only survive in this uneasy place to live. The Big Natural Bridge is 10 metres high and 40 metres long arch. Through it flows the river Rak. On the drain side is 37 metres high, wide is enough, so the road can go here from the western side to the restaurant.
Photos
Rakov Skocjan - Big Natural Bridge
Big Natural Bridge
Big Natural Bridge in Rakov Skocjan
Big Natural Bridge and river Rak
Below Big Natural Bridge
Big Natural Bridge and reflection
View of the east side from the road above Big Natural Bridge
Vista platform
View of river Rak and Tkalca cave in background where river Rak sinks
Road above Big Natural Bridge
Descent to the Big Natural Bridge from the west side
View of the bridge during descent
View through the Big Natural Bridge
Big Natural Bridge from the west side
Mossy stones
Big Natural Bridge and river Rak below
Wall above Big Natural Bridge
Data
Municipality: CERKNICA (11491 population)
Settlements in the municipality:
Cerknica (4061 population), Rakek (2140), Begunje pri Cerknici (727), Unec (580), Grahovo (484),
Dolenja vas (471), Martinjak (290), Dolenje Jezero (238), Ivanje selo (210), Slivice (182), Žerovnica (180), Selšček (154), Lipsenj (125), Gorenje Jezero (122), Bločice (109), Zelše (100), Bezuljak (90), Podskrajnik (88), Goričice (88), Bloška Polica (84), Kožljek (69), Topol pri Begunjah (65), Dobec (62), Kremenca (59), Osredek (54), Hruškarje (47), Gorenje Otave (46), Sveti Vid (43), Podslivnica (33), Štrukljeva vas (32), Bečaje (32), Ravne (31), Ponikve (27), Dolenje Otave (26), Otonica (26), Brezje (26), Župeno (25), Otok (22), Cajnarje (20), Mahneti (17), Jeršiče (17), Slugovo (17), Laze pri Gorenjem Jezeru (16), Tavžlje (15), Lešnjake (15), Rakov Škocjan (14), Pikovnik (12), Krušče (11), Zala (11), Milava (10), Stražišče (10), Reparje (8), Hribljane (8), Beč (7), Pirmane (7), Kržišče (6), Zahrib (5), Rudolfovo (5), Čohovo (4), Koščake (3), Gora (2), Korošče (2), Kranjče (1), Ščurkovo (0), Zibovnik (0)