The corridor between Apt and Cavaillon follows the river's long, shallow gradient — unhurried cycling through orchards, villages and the working edge of the massif.
What the Route Is
The Calavon river earns its reputation for gentleness on a map. It runs east to west along the northern foot of the Luberon, losing altitude so gradually between Apt and Cavaillon that a loaded touring bike feels almost dishonest. The total elevation change across the full corridor — roughly fifty kilometres — is a little over two hundred metres, and most of that falls in the eastern third, falling gently away from Apt's higher eastern suburbs. Once you are properly into the valley, the gradient flattens to something that barely registers in the legs.
This is not a trail in the wilderness sense. The route weaves between the D900 — the main road that the Calavon effectively dictates — and a network of secondary lanes and dedicated cycling paths that follow the river more closely. The voie verte (greenway) sections, where they exist, run on converted rail bed, which is how they achieve their near-perfect flatness: railways were built to tolerances that bicycles rarely need. Not all sections are paved to the same standard. Some stretches are compact gravel, pleasant enough in dry weather, slower after rain. Others are proper tarmac, smooth enough for a road bike. Knowing which is which matters if you are planning to do the whole thing in one push.
The route passes through or near Apt, Bonnieux's lower road, Coustellet, and eventually reaches the eastern outskirts of Cavaillon. Along the way it skirts stretches of open agricultural plain, crosses the Calavon several times on low bridges, and runs through a succession of fruit orchards and market gardens that produce the apricots, cherries and tomatoes you later find piled on Apt's market stalls on a Saturday morning. In summer this section can smell extraordinary — ripening fruit in the sun, irrigation water, dry grass — and in February it is spare and mineral, the pruned trees standing in rows like grey ink on pale soil.
What It Passes, and What It Doesn't
The cycling is honest and pleasantly ordinary. This is not a landscape of drama. The massif's northern wall rises to the south — cedar and garrigue on the upper slopes, limestone cliff occasionally breaking through — but the valley floor is agricultural, domesticated, and visibly working. You pass cooperative wine warehouses, a gravel depot, a few roadsides planted with lorry-sized mulberry trees that look as old as the drainage ditches beside them. Village centres sit set back from the valley floor; Robion, Cabrières-d'Avignon and Lumières are close enough to reach on short detours without serious climbing.
The middle section, around Coustellet and the flat plain near Maubec, is the least scenic and the most practical. Coustellet has a Sunday market that draws much of the northern Luberon, and a cooperative that handles wine from across the appellation. There is commerce and infrastructure here in a way that the perched villages deliberately resist. On a bicycle this is actually useful — places to stop, fill a bottle, eat something unpretentious.
The western end broadens as the valley opens toward the Durance plain and Cavaillon. The cycling becomes more suburban, the road surface more reliable, and the massif recedes in the mirror. Cavaillon itself is a market town with a melon fixation and a large periodic market in the centre; arriving by bicycle from the east, past the last orchards and along the ring of plane trees on the main boulevard, feels proportionally correct for how the route has been.
The Honest Assessment
Call it a route for people who enjoy cycling through places rather than through scenery. There is no famous view, no obvious summit reward. What the Calavon corridor offers is continuity — the sense of reading the valley in real time rather than glimpsing it from a village square. You see the irrigation infrastructure, the co-operative warehouses, the agricultural machinery parked in farmyards. You understand, probably more clearly than any drive-by allows, that this valley feeds people and has done so for a very long time.
Two practical caveats. First, the D900 itself carries fast traffic, and on the sections where there is no voie verte alternative, it requires a degree of attention. The road is not dangerous in any objective sense but it is not companionable either. Second, the route as a whole is long enough that it rewards a point-to-point plan rather than an out-and-back; the public transport connections at each end — Apt is served by bus, Cavaillon has a train station on the Marseille–Avignon line — make a one-way ride logistically manageable.
Almost flat is not the same as flat, and almost fifty kilometres is not the same as short. But for the right kind of rider, neither of those caveats is a problem. The valley is gentle, the gradient is honest, and the massif keeps pace alongside you the whole way.