British nationals do not require a visa to enter Botswana for stays up to 90 days. If you wish to stay for longer, you can seek an extension from the Department of Immigration. Your passport must be valid for a minimum period of 6 months from the date of entry in Botswana.
Children who are travelling must provide a certified copy of their full birth certificate. If the child is travelling with one parent, another adult or unaccompanied, the parents must provide an affidavit giving consent for the child to travel.