I don't see any reason why they would not be. I would check the website, though.

Yes you can at very fast pace. I was able to do it starting 9 in the morning. You will be walking.

Its quite a distance to the house down a steep valley through stunning gardens, however there is a hop on hop off buggy thing that takes you if you don’t want to walk . The house itself isn’t that big you could probably go round in an hour . I was there longer because i was enjoying the gardens which are idyllic - think garden of eden.

At the palace you can park the stroller under the stairs on the first floor, and then use the stairs to get to the second floor and the basement. It is challenging as you walk uphill as it is steep, but overall I would recommend visiting Monserrate no matter what, just keep in mind it is a bit of a workout to pull it off with a stroller. But very worthwhile.

We walked from the Monserrate Palace to the centre of Sintra in about 40 minutes, from whence there are regular buses to Cabo de Roca. Alternatively there's a circular route bus that drops off and picks up from Monserrate back to Sintra's railway station where a change of bus is required to get to Cabo de Roca.

Hello again, after over an hour I found the interview. If anyone is interested, on YouTube: interview with Richard Kingsbury. Enjoy

I know they do have mobility options the only thing not sure about is, if it's only for reduced mobility reasons or anyone.

Hi thank you for your question. We used the Bus 417 to Cascais via Estorill - Approx 30mins. There is another bus (not sure of number catch outside of train station) that takes you to Cascais via Cabot De Rocha, this is amazing, fantastic scenery. Total journey about an hour. Cabot De Rocha is well worth a visit so maybe a day pass would be better. Also sunset at Cabot is awesome. You can get Tuc Tuc these are fun but work out quite expensive. See your options for travel passes etc - although the transport network is very reasonable.

I suggest you read the other's recommendations. I did not want to rush, so I leisurely left Lisbon by morning metro train knowing of my one choice, perhaps two. But once there decided this one was enough and such great weather I wanted to spend time in the gardens. More the "next time"...Also because I was taking the longer (local) bus route to see the pretty landscapes enroute to Cascais.