What to see in Sintra: Castles
, great views and beautiful nature
Overview of our day 

Morning 
To give you an idea how much time you need in Sintra, I’ll give you an overview of our day (all by foot). At first, we got the train from Lisbon at 8.15am. Arrived in Sintra just before 9am, went to Palacio da Pena and arrived at around 9.45am (by foot). Didn’t enter, walked around it and walked to Castelo dos Mouros, arrived there at 10am (very close to Palacio da Pena). Castelo dos Mouros really was our highlight of the day! Left here at 11am.
Afternoon 
Walked through the city centre, did some shopping, sightseeing, took an outside look at the Palacio Nacional de Sintra, had some coffee and pastry. At around 12.15 we headed for the Quinta da Regaleira – our second highlight of the day, entered there at 12.30. We took the train back to Lisbon at around 14.30. We were back at our hotel in Lisbon at about 15.30.
Preparation for walking through Sintra

Download the app “maps.me” and make sure to download the city of Sintra

. Especially for walking, maps.me is far more complete with paths then Google Maps.
When you like to walk and your physical condition is fine, no problem, you can do it. Its not a very hard trail. There are some mountains involved but the first walk (from the train station to Palacio da Pena) will be the toughest. But mostly beautiful and not that physically challenging, just some healthy raise of heartbeat.
Make sure to take food and drinks with you. Definitely enough water and when you are on a budget, it’s also always more advisable to take your own lunch and snacks. We did sit down at a place for some coffee and pastry in the centre of Sintra, but took our own water and lunch with us. It’s up to you and your travel style.