Vence has an Old Town and a newer town
"Visit on Market Day if you can"
The market abutting Old Town Vence is great fun. They had fruits, vegetables, breads and even kittens and rescued animals. You could walk the market or sit and watch people playing petanque. Across the street are outdoor cafes and there are a few good restaurants right on the market square.
When the market ends, find Old Town and spend the rest of the day admiring the architecture, shops, church and spectacular views.
"Chagall in this tiny church?"
Yes, there is a wonderful Chagall mosaic in the church in Old Town. We attended Mass on one Sunday and it was Youth Sunday so we had a special program put on by the young people of the parish. It was all great fun. It's always fun to happen into a special event or festival.
The church is open for touring during the week.
"Can there be 2 farmers' markets in one town?"
Yes, there is one outside the Old Town area . . . and another in the Old Town square by the church.
Wander the ancient cobblestone streets admiring the buildings and then walk through the market looking for a picnic lunch. Take the picnic fixings and head out of town into the beautiful mountainous countryside and find a place by a stream to enjoy.
Ah . . . Provence.