Probably the best airbnb I've ever stayed in ! It was extremely cute with a small table outside you can have breakfast under the sun, while you prepare to go to the beach (the closest one is Praia do Tamariz) which is just a 5 minute walk away. The train station is just before the beach next to the road, so it's easy to get anywhere on linha Cascais. Estoril was the least crowded area and very peaceful which is exactly what we wanted. Very highly recommend and will definitely return back here on another journey to Portugal.