SEVEN summits in seven days with no balancing pole, and no safety harness.

Daredevil Freddy Nock is walking a very thin line.



The Swiss adventurer is attempting a week-long challenge to conquer summits in Germany, Austria and Switzerland – all by high wire.



First on the list was this cable car 3000m above sea level in Grainau, southern Germany.



Mr Nock took just 90 minutes to master the 1000m metal rope to reach the top of Zugspitze - Germany's highest mountain.

The walk will be submitted to the Guinness Book of Records as the "longest and highest wire walk above sea level without a balancing pole".



"I don't want to attempt that walk again,” Mr Nock told The Sun.



"It's behind me and I don't want to do it again. Not without a balancing pole.



"It was exhausting, my feet are still shaking.



"My fingers are fine though. I feel okay," he said.



Freddy - real name Alfredo - is from a renowned circus family and first took to the high wire aged 11.



In 1998 he smashed the record for running the cable of the St. Moritz signal line, before becoming the fastest rope runner of the Säntis Schwebebahn in 2006.



Mr Nock’s next challenge is the longest cable crossing with a bike and the longest and highest rope down a valley



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