4.4
(80)
512
riders
68
rides
Mountain biking around Kea offers routes through a landscape shaped by its mining heritage, featuring former industrial sites, valleys, and viaducts. The terrain includes a mix of open areas and paths that follow old railway lines or mining tracks. This region provides varied surfaces suitable for mountain biking, from gravel paths to more technical sections.
Last updated: June 25, 2026
4.0
(2)
37
riders
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
4.5
(6)
30
riders
40.7km
03:10
550m
550m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

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5.0
(1)
30
riders
10.5km
00:48
40m
40m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
5.0
(2)
28
riders
22.2km
01:49
280m
280m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
3.0
(1)
25
riders
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
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In tin production, ore was roasted above 300°C to remove impurities such as sulphur and arsenic which otherwise made the cast tin brittle. If arsenic was desired, fumes from the calciner passed through a long flue known as a 'lambreth' or labyrinth, where the gas cooled and condensed, forming arsenic crystals on the walls. When sufficient had collected, the calciners were stopped, iron doors in the lambreth were opened, and the arsenic ‘soot’ was swept off the walls and shovelled out. Workers put wads of cotton wool in their nostrils and a cloth over their mouths. and followed strict washing regulations, but still experienced skin irritations. Some workers were believed to have developed partial immunity, and folklore suggested arsenic improved complexion and hair condition. The lambreth had a tall stack at the end to create a strong through draught and also to reduce the damage caused by the noxious fumes.
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Built in 1897, this calciner was used to roast arsenic ore - check out the date above the archway. Arsenic gas was driven off by the heat and travelled towards the stack higher up the hill and through the labyrinth, or lambreth, where it condensed on the walls. See this link for a diagram of the Brunton roasting furnace with the revolving hearth upload.wikimedia.org/wikipedia/commons/a/af/Brunton_roasting_furnace.png
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This is a welcome stop and popular with both hikers and cyclists.
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Everything a cyclist needs. Great food, great drinks and a selection of essential spares.
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As well as great food and drinks, this fabulous cafe carries cycle parts and essential spares. Just brilliant.
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Mountain bike trails in Kea traverse a landscape shaped by its mining heritage. You'll find a mix of former industrial sites, valleys, and viaducts. The terrain includes open areas, gravel paths, and sections that follow old railway lines or mining tracks, offering varied surfaces from easy to more technical.
There are over 70 mountain bike trails around Kea, offering a wide range of options for different skill levels and preferences.
Yes, Kea offers a good selection of trails suitable for beginners and families. Approximately 29 of the routes are graded as easy. An example of an easy, family-friendly option is the Bike Chain Bissoe Café – Carnon Viaduct loop from Gwennap, which is about 6.5 miles long.
Trail lengths vary significantly. For instance, the easy Poldice Mine Loop Stone Marker – Wheal Maid Valley Tailings Dam loop from Chacewater is 9.6 miles (15.4 km) and takes around 1 hour 18 minutes. Longer, moderate routes like the Carnon Viaduct – Carn Marth Quarry Pool loop from Perranwell can be up to 25.3 miles (40.7 km) and take several hours to complete.
Yes, many of the mountain bike routes in Kea are designed as loops. Examples include the Carnon Viaduct – Poldice Valley Mining Ruins loop from Perranwell and the Poldice Mine Loop Stone Marker – Warrine Mine Shaft, Unity Wood loop from Chacewater, both offering scenic circular rides.
The mountain bike trails in Kea are highly rated by the komoot community, with an average score of 4.4 stars from over 80 reviews. Riders often praise the unique mining heritage landscapes, the variety of terrain, and the well-maintained paths that cater to different skill levels.
Yes, the Kea area is rich in natural beauty and historical sites. You can find scenic viewpoints like Cligga Head Coastal Cliffs and Ruins and St Agnes Beacon. The Gwennap Pit, a historic open-air amphitheatre, is also a notable natural monument in the region.
Absolutely. The region's mining heritage is a prominent feature, with many trails passing through former industrial sites and viaducts. For historical castles, you might consider visiting St Mawes Castle or exploring the area around Pendennis Point, which features Pendennis Castle.
Kea generally offers good mountain biking conditions for much of the year. Spring and autumn provide pleasant temperatures and vibrant scenery. While winter riding is possible, be prepared for potentially wetter and muddier conditions, especially on unpaved sections.
While Kea offers a good number of moderate trails, such as the Carnon Viaduct – Carn Marth Quarry Pool loop from Perranwell, there are currently no trails explicitly graded as 'difficult' in this specific guide. The moderate routes often include varied terrain that can still provide a challenge.
Yes, some routes are conveniently located near amenities. For example, the Bike Chain Bissoe Café – Carnon Viaduct loop from Gwennap starts near the Bike Chain Bissoe Café, making it easy to grab a refreshment before or after your ride.


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