Saint-Jean-Cap-Ferrat is a super posh seaside village in a beautiful location, on a peninsula jutting into the blue Mediterranean between Nice and Monaco. It's more secluded and off the beaten path, which I like. Many of the yachts from St. Tropez dock up here for the night, but there isn't much to do, other than relax and explore the beaches and see the town. Paloma Beach is spectacular and a little difficult to get to, but that's why it's great and not flooded with tourists. Also, you are only about 30-min by car to Monaco, so you could literally walk if you wanted a longer journey and to pass through Èze on the way.
Buffet de la Gare has the best ice cream in town; it is so good, that no other ice is comparable. I love all four of the Pinasse cafes! The food and service are terrific. If I were forced to choose one, I would say La Cabane is the absolute best. Their fish burger is divine. It's my hidden secret. The stall that Berangere holds at the market is always assailed, but she always has time to discuss.