After completing his studies at Eton, William took a gap year, during which he took part in British Army training exercises in Belize, worked on English dairy farms, visited Africa, and for ten weeks taught children in southern Chile.
Efter at have afsluttet sine studier på Eton tog prinsen et sabbatår, hvori han deltog i den britiske hærs øvelser i Belize, , arbejdede på engelske malkekvægsbedrifter, besøgte Afrika , og i ti uger underviste han børn i det sydlige Chile.