Yes, Sintra is a very good location for families. If you are looking to live in Portugal, Sintra is a very good option. Children will be able to enjoy an active life, with natural landscapes and beaches close at hand. Also, there are very good international schools close at hand. These include Prime International School, Carlucci American School, and TASIS Portugal International School. There are also very good international schools in Cascais and Lisbon.