We have just returned from two weeks at Emerald Coast Gites (Number 1, La Vieille Grange), and it was about as relaxing as a holiday with a one-year-old and a three-year-old is possible to be. We chose to go to Brittany as it involved minimal driving, and got the overnight ferry to St Malo which worked very well.
The set-up is ideal for young children. The gites are arranged around a large play area with a slide, swings and see-saw, so children can just go out of the door in the morning to play and there is enough to occupy them for hours. It is fenced off with a separate car park so there are no traffic worries. There is another play area adjacent to this with a trampoline, slide and lots of ride-on toys. The soft play area in the terrace is also great. The whole site is lovely, with lots of flowers and trees (even the cats are very tolerant of toddlers!) The owners are very friendly and helpful (for example phoning a local stables to book horse-riding for me). The swimming pool is of a decent size, although a little on the cold side if you are not actually swimming. There is also a freezer stocked with ice-creams and children's meals, and a Plat du Jour service on most days which was delicious. We also enjoyed the cheese and wine evening.
The gites are located in beautiful countryside just outside the small village of Hénansal around 11km from the coast, so it does involve a bit of driving every day, but it is not far and traffic is light. There are many big and quiet sandy beaches in the area - we could have visited a different one every day. The Grand Randonée 34 (like the South West Coast Path in the UK) would provide ample opportunity to walk off the delicious pastries that are delivered to the gite six days a week, although we only managed to walk tiny bits of it due to whinging children.
My only minor criticisms: the wi-fi was unreliable. The website states that all gites have wi-fi, which in theory they do but due to the thickness of the walls it doesn't work very well and I only managed to connect to it once in the gite, and about 75% of the time in the terrace area. I was also a bit surprised that there was a 4 euro charge for using the communal washing machines, as this also wasn't stated on the website or when I enquired about washing (all the similar UK properties we've stayed had their own washing machine). I also thought it was a shame they didn't have a compost bin (vegetable peelings etc have to go in landfill) as they certainly have the space for it.
There aren't a huge amount of leaflets on display, or a list of, for example, local cycle hire centres, so it may be worth visiting a local tourist information centre or looking online. Also some restaurants are listed in the bar but it is worth finding out their addresses for your satnav as the directions can be a bit vague.
With regard to the review above - I didn't notice a chicken farm but maybe I am unobservant!