Even with the summer crush on the French Riviera in full swing, there are quiet escapes to be found. In particular, I like to take walks along the Sentier du Littoral, the coastal footpath that stretches the length of the French Mediterranean coast. My favorite piece is in St. Tropez, where I head by boat from Ste. Maxime (the Bateaux Verts leave every 10 minutes). From the ferry landing, I start walking—through the narrow streets and old port, under the imposing citadel that has guarded residents since around 1600, past the cemetery, and onto a narrow path that ribbons around the St. Tropez Peninsula. The 7-mile route takes me by inlets of crystalline water, hidden villas whose residents I always wonder about, and past dozens of little beaches that are significantly more serene and less crowded than the frenzy of those found along Pampelonne Bay, where this piece of the trail ends. You can hoof the two miles back to the village, or take the bus.