The restaurant is located next to the harbour and it seems that these are actually two restaurants - one more "simple" one with pizza and a "normal" one where we have been to. The outside of the building doesn't look good, but this seems to be normal in France... The inside was nice, though! They only open at 7 pm, that's pretty in my view, and it quickly got full. The menu is in French, English and German, very helpful. I had chicken which was very good, but it was a very small portion - a small chicken, just one potato (and not a big one!) and a little bit vegetable. For the price that it had costed I had expected more. It was the same with the other dishes, be it scallobs, or duck. It seems only the salad plate was enough. So when we left the restaurant we were still hungry.
Pontailler has a port where you can rent houseboats at company Les Canalous. No boat driver permit is needed for this. There are several choices of where to go from there, so this is a good starting point for your houseboat holidays. A bit upstream the "Canal de la Marne à la Saône" branches of, and downstream near St Jean de Losne there are two more canals that you can take, the "Canal de la Rhône au Rhin" to Besançon and the "Canal de Bourogne" to Dijon. Or you stay on the Saône river, which is a pretty big river that makes it's easy to drive and of course is perfect for beginners.
You can either moor at the port which is in a sheltered position and where you can get electricity and water, or if you prefer an easier place to moor you can take the stepped quay at the right bank downstream from the bridge. And if you need you some food: there's a small supermarket and a bakery not far from the harbour, and there's a bigger ATAC supermarket a bit more than 1 km away.