Rio-Antirrio Bridge

Opened in 2004, the Charilaos Trikoupis Bridge links the Peloponnese to mainland Greece across the narrows where the Gulf of Corinth meets the Gulf of Patras. The engineering answers an unusually hostile site: water up to 65 metres deep, deep soft sediments, seismic activity and two tectonic plates drifting apart. The four pylons therefore stand on gravel beds laid on the seabed, not driven into it, so the whole structure can move in an earthquake; the deck is suspended from cables and can slide, and the design tolerates significant displacement. It is one of the world's longest multi-span cable-stayed bridges at 2,880 metres. From either shore, and especially at night when it is lit, the sequence of four diamond pylons over the strait is the sight; the older ferry still crosses beneath it.

What you actually see

• The four pylons - diamond towers carrying the cable fans.
• The night lighting - the bridge illuminated over dark water.
• The strait - shipping passing between the two gulfs beneath the deck.
• The old ferry - the crossing that still operates alongside the bridge.

When to go

Any time; dusk gives the best photographs from the Rio shore. There is no visitor centre, so this is a drive-past or a shoreline stop.

Honest expectations

The toll for crossing is among the higher road tolls in Greece. Stopping on the bridge is not permitted, and pedestrians use a narrow walkway. Viewing means finding a spot on either shore, where the beaches are ordinary.

Nearby

Patras and its port are minutes east; Nafpaktos with its Venetian harbour lies west along the northern shore.