Why not link your tour to your school PSHE planning? Areas covered could include: gaining self-confidence and independence; working together and making new friends; trying new activities; enjoy healthy, safe, responsible and fulfilled lives; recognising and managing risks; take increasing responsibility for themselves.
For KS3/4 how about linking a cultural tour to the Citizenship curriculum: to enable them to manage their money on a day-to-day basis.
KS2 Foreign Language: listen attentively to spoken language and show understanding by joining in and responding; engage in conversations; ask and answer questions; develop accurate pronunciation and intonation; broaden their vocabulary and develop their ability to understand new words.
KS3 Modern foreign language: develop and use a wide-ranging and deepening vocabulary that goes beyond their immediate needs and interests; listen to a variety of forms of spoken language to obtain information and respond appropriately; initiate and develop conversations, coping with unfamiliar language and unexpected responses, making use of important social conventions such as formal modes of address; speak coherently and confidently, with increasingly accurate pronunciation and intonation.
KS4 Modern foreign language: develop their ability to communicate confidently and coherently with native speakers in speech and writing, conveying what they want to say with increasing accuracy; express and develop thoughts and ideas spontaneously and fluently; listen to and understand clearly articulated, standard speech at near normal speed; deepen their knowledge about how language works and enrich their vocabulary in order for them to increase their independent use and understanding of extended language in a wide range of contexts; develop awareness and understanding of the culture and identity of the countries and communities where the language is spoken.