We had a work conference in the Cascais Mirage Hotel, it was a fabulous hotel, it was just beside a harbour, didn't notice the beach, but then it was death by powerpoint...so we didn't get out much. Food was very nice there - loads of lovely fresh fruit, top service. It was January and temperature was very pleasant - 17 deg or so. Some of my work colleagues took the bus into Lisbon to have a look and really enjoyed it. It cost 35e from the airport to the hotel in a taxi. There was an outdoor swimming pool which was not an option in Jan but I'm sure would be lovely in the summer...btw, I wasn't overly impressed by what I saw from airport to Caiscais, wasn't exactly gorgeous, but then as I say I didn't get out much and maybe there's great stuff to see in Lisbon...other than football stadias...(is that the correct plural??)