He walked up Snowdon and down again giving other mountain visitors more of a view then they bargained for.
It took 29 year-old Jon Jolley three-and-half hours to reach the summit - and you might not have wanted to be behind him!
The Wrexham FC and Arsenal fan put a £100 bet on Brazil to win the World Cup for the fifth time, along with top striker Neymar claiming the golden boot, at 20-1.
So sure was he that he'd claim his winnings he told friends, if they didn't he'd climb Snowdon in a thong.
Scantily clad Jon walked the route starting from Llanberis at 11am and is delighted with the results.
And you can watch Jon's climb up Snowdon here. It was filmed by his friend Leighton at www.leightoncox.co.uk.
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