If your son is coming to Chavagnes, he will need a blue EU health card. We advance all medical costs and then send the paperwork to parents each term. You can get a reimbursement from the NHS back in the UK (from the NI contributions agency). The reimbursement is not for the full amount, so we recommend an additional travel insurance package or some other kind of insurance just in case. Medical costs are low in France: a doctor’s consultation is about 25 euros.
Please consult your usual insurance broker for details of the best package for your child; until you have the package in place, ordinary travel insurance should be sufficient.