Maria offers a charming gardenhouse close to Sintra if you come by car. We were there with our son at 10 months and Maria had bathtub ready for him. She has two friendly big dogs, and the neighbors at least two (!) so you should be okay with a lot of barking. She made us a nice dinner one evening, that we can only recommend. The WiFi only worked when standing outside next to the mainhouse. We were there a couple of rainy days and water came in and it was pretty humid but it wasn't too big a problem since Maria was helpful.