The Manneporte is the third and largest of Étretat's natural arches — bigger and more dramatic than the famous Porte d'Aval but invisible from the town. To see it you have to walk the clifftop path beyond the Falaise d'Aval for another 20 minutes, or descend the steep stairs from the cliff to the beach below at low tide and walk along the shore. From the second arch you look back through the structure of the cliffs and see why the geology here has been called the most painted in France.
Monet's La Manneporte près d'Étretat (1883), now at the Met in New York, was painted from below this arch at low tide. The walk back to town via the clifftop is the best way to see all three arches in sequence.