 CAISL has participated annually in the FIRST Lego League "National Championship", an international robotics competition, since 2018.CAISl is a member of The Association for Music in International Schools (AMIS) and sends a student delegation annually to the AMIS International Music Festival.CAISL hosts the annual Sintra Theatre Showcase (), a showcase of school drama departments from across the Sintra area of the Portuguese Riviera.