View of Grožnjan – Kostanjica Tunnel (Parenzana) loop from Brtonigla

Croatia

Istria

View of Grožnjan – Kostanjica Tunnel (Parenzana) loop from Brtonigla

Hard

4.2

(6)

riders

View of Grožnjan – Kostanjica Tunnel (Parenzana) loop from Brtonigla

03:31

60.9km

670m

Gravel riding

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

Last updated: September 24, 2026

Waypoints

Start point

Parking

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11.9 km

Panoramic view of downtown Buje

Highlight • Viewpoint

From this point, near the old Buje market, apparently inaccessible today and in the artisan area of the town, there is a splendid view of the historic centre of Buje, which stands on one of the many Istrian hills.

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18.8 km

Parenzana Tunnel

Highlight • Structure

The tunnel passes Groznjan below. The tunnel lights, which only turn on gradually, are funny.

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19.0 km

View of Grožnjan

Highlight • Viewpoint

The approach to Groznjan is not particularly demanding, the place is very beautiful and the descent over the Parenzana with a view of Groznjan is easy and beautiful.

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21.7 km

View of the Mirna Valley from the Parenzana

Highlight • Viewpoint

A great panorama in the valley of the Mirna

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21.7 km

Viewpoint on the Parenzana Trail

Highlight • Viewpoint

Photo opportunity spot and a nice viewpoint. Good place for taking some rest and meeting other cyclists on Parenzana

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23.1 km

Kostanjica Tunnel (Parenzana)

Highlight • Structure

88 meters - Unlit

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27.8 km

Antonci Viaduct on the Parenzana Trail

Highlight • Bridge

A wonderful view from the bridge

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30.2 km

Freski Tunnel and Viaduct on the Parenzana Trail

Highlight • Cycleway

Driving on the old railway line, gravel road for MTBs, fantastic views. When driving from Groznjan to the east, the old railway line has a slight gradient. The longer tunnels …

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60.9 km

End point

Parking

Way Types & Surfaces

Way Types

39.5 km

15.3 km

4.25 km

1.75 km

200 m

Surfaces

24.2 km

21.3 km

15.1 km

221 m

211 m

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (300 m)

Lowest point (0 m)

Weather

Friday 9 October

22°C

14°C

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Comments

June 3, 2025,Novigrad - Buje-Parenzana - Livade (GRV)

So, day 2 in NOVIGRAD/CRO: by gravel bike from here to Buje along a signposted cycling route – which in some places is almost only manageable by mountain bike, but is a bit tricky in places with a gravel bike. Regardless, everything was manageable except for a steep descent with huge rocks and deep dislocations (approx. km 18 of the …

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