Golf:
https://en.leadingcourses.com/europe+portugal+lisbon-region/city=sintra/
Surf:
https://www.portugalsurfrentals.com/surf-rentals-praia-grande/
Things to do:
http://gidsportugal.com
https://lisboasecreta.co/
https://www.visitportugal.com
https://www.bartsboekje.com/categorie/portugal/
