Will Bosi makes first ascent of Pôr Do Sol (8C+) at Sintra in Portugal
Scottish climber William Bosi making the first ascent of Pôr Do Sol (8C+) at Sintra in Portugal, January 2026
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12/01/2026 - Climbing
Will Bosi makes first ascent of Pôr Do Sol (8C+) at Sintra, hardest boulder problem in Portugal Scottish climber William Bosi has made the first ascent of 'Pôr Do Sol' at Sintra close to Lisbon. Graded 8C+/V16, it is currently the hardest boulder problem in Portugal.
