Gorges de Daluis

A red-rock canyon road nicknamed the Colorado of Nice, threaded with cliff tunnels.

South of Guillaumes the D2202 hugs the western wall of a deep gorge cut into rust-red Permian pelite by the upper Var, dropping toward Daluis. The southbound lane runs through a string of narrow, unlit rock tunnels, with the vertiginous Pont de la Mariee spanning the void. It is more spectacle than racetrack, but the changing colours and the sheer drop make it memorable. Mind the unlit single-lane tunnels, oncoming traffic on the cliff edge, and falling rock after rain.