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Karamanlis Tunnels – Holes of Karamanlis loop from Ελληνικό

Karamanlis Tunnels – Holes of Karamanlis loop from Ελληνικό

Moderate

4.9

(15)

245

riders

Karamanlis Tunnels – Holes of Karamanlis loop from Ελληνικό

04:39

107km

870m

Road cycling

Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride. The starting point of the route is accessible with public transport.

Last updated: May 27, 2026

Waypoints

Start point

Train Station

Get Directions

11.3 km

The two tunnels are located at km 31 of the Athens-Sounio road and have always been a point on the road network that required special attention from drivers due to their dangerousness. In the past, drivers honked every time they passed through the tunnel. Some still honk today. The first tunnel (now heading towards Athens) was built in 1954, the second was only added in 1980 and was Karamanlis's heartfelt wish. Konstantinos G. Karamanlis was a Greek politician who served two terms as Prime Minister (1955-1963 and 1974-1980) and twice as President of the Hellenic Republic (1980-1985, 1990-1995) and left his mark on the period after Greece's independence. The tunnels are very short, about 7 meters long, but are located on a curve.
The old tunnel is also steeped in history due to an assassination attempt that took place there. The tunnels became famous after the assassination attempt on George Papadopoulos by Alekos Panagoulis on August 13, 1968, which failed because the improvised explosive device exploded a few seconds after the dictator passed through the tunnel.

Translated by Google •

Tip by

24.6 km

Sunset Over the Saronic Gulf

Highlight • Viewpoint

Sunsets along the riviera are awsome

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27.6 km

Κεντρική παραλία Σαρωνίδας

Beach

32.1 km

View of Agios Nikolaos Bay, Anavyssos

Highlight • Viewpoint

51.5 km

View of Paralia Sounio from the Archaeological Site

Highlight • Viewpoint

Nuce views...

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51.8 km

Temple of Poseidon at Cape Sounion

Highlight • Historical Site

Amazing location of this old fortress and temples built by Ancient Athenians on Attica's southernmost point, which still greet ships today. Winter €4, or might be free for bike travelers with a friendly smile 😁

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89.1 km

Holes of Karamanlis

Highlight • Structure

Note that after the new works the road is much better now at least from Boyliagmeni to Limanakia and Holes of Karamanlis. Road cyclists will be able to achieve better times and recreational cyclists just ride smoother and with less effort and fatigue.

Tip by

103 km

Sailing at Glyfada

Highlight • Beach

107 km

End point

Train Station

Way Types & Surfaces

Way Types

80.6 km

22.2 km

2.57 km

1.18 km

383 m

121 m

Surfaces

101 km

5.09 km

556 m

252 m

Elevation

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

Highest point (100 m)

Lowest point (0 m)

Weather

Wednesday 8 July

31°C

23°C

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