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9-22 May 2025 Portavadie to Arbroath Total distance 331km Elevation 6300m Precipitation 0% Midges >1% Ticks 3 The TGO Challenge is steeped in history. It started in 1980 when mountaineer Hamish Brown presented the idea of a coast-to-coast, self-guided challenge to Roger Smith, the then Editor at The Great Outdoors Magazine. Many challengers return year after year to join the pilgrimage from …