A Snowdonia mountain sportive where the number that matters isn't the distance, it's the climbing. From Caernarfon Castle into Eryri, you're either going up or coming down. There's almost no flat.
Closed-road loops out of Caernarfon Castle through Eryri National Park, taking in the signature Pen-y-Pass and Llanberis Pass. The Mawr packs 2,700 to 3,000m of climbing into 120 miles of near-constant up and down.
Highs around 15°C and lows around 12°C, but it has dropped to 8°C. Rain on 46% of days.
We don't do generic plans. We combine deep knowledge of this race's demands with your recent training, then build a plan with you that progresses as you do.
Beina integrates directly with your existing tools to understand your current fitness, and synchronise your planned sessions.



