SP20 Gravel Road Castiadas – Arcu e Tidu Climb loop from Torre di Cala Regina

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Italy

Cagliari

Quartu Sant'Aleni/Quartu Sant'Elena

SP20 Gravel Road Castiadas – Arcu e Tidu Climb loop from Torre di Cala Regina

Hard

riders

SP20 Gravel Road Castiadas – Arcu e Tidu Climb loop from Torre di Cala Regina

06:07

91.8km

1,380m

Gravel riding

Hard gravel ride. Very good fitness required. Mostly paved surfaces. The starting point of the route is right next to a parking lot.

Last updated: August 17, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Monti dei Sette Fratelli

Waypoints

Start point

Parking

Get Directions

871 m

View of the Costa Rei Coastline

Highlight • Viewpoint

2.16 km

Scenic Road SP17 to Mari Pintau

Highlight • Cycleway

The SP17 in the early morning is yours alone. Hardly any car traffic, no motorcycles and sensational views ;-)

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22.4 km

View south from Castiadas Pass (SP20)

Highlight • Viewpoint

22.5 km

SP20 Gravel Road Castiadas

Highlight • Trail

A winding climb from south to north, partially with washed-out gullies. Not particularly steep, but quite long 😓😓. Gravel bike? Maybe. I was there on a hardtail—it's fine.

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22.5 km

Castiadas Monument

Highlight • Monument

The saddle is about 400 meters above sea level. The SP 20 is mostly a gravel road with deep washouts and is therefore closed to public transport. The SP 20 …

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53.1 km

Valley Road in the Monti dei Sette Fratelli

Highlight • Trail

53.5 km

State Road 125 to the Arcu and Tidu Pass

Highlight (Segment) • Mountain Pass

It is a well-paved road that leads to the Arcu and Tidu pass. There may be some gravel on the road, be careful when going downhill. At the top of …

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67.0 km

Arcu e Tidu Climb

Highlight • Climb

From the south-west side, climb with many curves that make the difference in height easier. Asphalt not always in good condition, on several sections there is gravel on the sides: …

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