B4391 Scenic Road, Parc Cenedlaethol Eryri
B4391 Scenic Road, Parc Cenedlaethol Eryri
Highlight (Segment) • Trail
B4391 Scenic Road, Parc Cenedlaethol Eryri
Road cycling
4.7
(17)
This Highlight goes through a protected area
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August 11, 2022
Road cycling
December 28, 2019
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March 26, 2024
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Nearby routes
Best routes near B4391 Scenic Road, Parc Cenedlaethol Eryri
73
riders
87.7km
04:47
1,610m
1,610m
Prepare for a challenging racebike adventure on the Stwlan Dam climb from Bala loop, a difficult route spanning 54.5 miles (87.7 km). You will conquer a significant 5270 feet (1606 metres) of elevation gain, with an estimated duration of 4 hours and 47 minutes. The highlight is the brutal yet beautiful ascent to Stwlan Dam, where you'll navigate numerous hairpin bends, a unique feature for a UK climb. As you pedal, magnificent panoramic views of Snowdonia National Park unfold around you. The broader loop also offers scenic sections with glimpses of Bala Lake (Llyn Tegid) and winding roads like the B4391, making for a truly rewarding experience.
When planning your ride, note that the Stwlan Dam climb itself uses a very narrow service road. This road is closed to general car traffic, which ensures a peaceful cycling experience with minimal vehicle disturbance. While the private access road is generally in great condition, be aware of a potentially uneven, rocky, or muddy section at the very start of the dam approach. This route demands a very good level of fitness due to its steep and sustained gradients, so come prepared for a serious workout.
This route stands out for its formidable ascent, making it a true test of endurance for any cyclist. The climb to Stwlan Dam is particularly notable for its unique hairpin bends, a rare sight on UK climbs. Beyond the dam, the loop provides diverse scenery, including views of Bala Lake (Llyn Tegid) and the scenic B4391 road, offering a comprehensive exploration of the region's natural beauty.
5.0
(1)
65
riders
64.9km
03:32
1,020m
1,020m
Prepare for a demanding road cycling adventure on this difficult 40.3-mile (64.9 km) loop from Trawsfynydd. You will tackle significant climbs, gaining 3342 feet (1019 metres) in elevation over approximately 3 hours and 31 minutes. The route offers expansive views of the Snowdonia mountains, including the Rhinogs, as you cycle past Llyn Trawsfynydd. You will also experience the serene beauty of Llyn Tegid, Wales's largest natural lake, providing a rewarding contrast to the challenging ascents. The asphalt sections between Dolhendre and Bronaber wind smoothly through the mountainous terrain.
This difficult route demands very good fitness, so ensure you are well-prepared for its challenging uphill sections. You might find yourself needing to push your bike on some of the steeper gradients. Before you set out, make sure your racebike is in excellent condition. Carry enough water and supplies to last the entire 3 hours and 31 minutes, especially since the route covers a substantial distance.
This loop is notable for connecting three distinct llyns, offering a varied experience across the Snowdonia National Park. You will encounter both the man-made expanse of Llyn Trawsfynydd and the natural grandeur of Llyn Tegid. The route showcases the diverse landscapes of Parc Cenedlaethol Eryri, from open reservoirs to winding mountain roads. It provides a comprehensive tour of the region's aquatic and mountainous features.
8
riders
83.1km
04:23
1,080m
1,080m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.
Details
Informations
Distance 4.39 km
Uphill 70 m
Downhill 10 m
Weather
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Thursday 23 July
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8°C
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Additional weather tips
Max wind speed: 15.0 km/h
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