Sintra is a very busy place (an understatement), but our guide Mr. Mehdi made it fun and enjoyable by navigating us effectively through the crowds while sharing his considerable knowledge; especially history. We enjoyed his company. We got to see Pena Palace, walked part the ramparts alone, walked in the city centre, had a very tasty Portugese lunch that Mr. Mehdi helped us select and descended the circular stair at the ornate Quina da Regaleira palace - all in a 1/2 day !!! We highly recommend this tour as local knowledge is essential to get around the one way streets, traffic, parking and congestion of Sintra.