We’re going abroad next week & the weather forecast is for temperatures up to 40 degrees. Keeping DCs indoors is going to be impossible (although obviously will keep them out of the midday sun) so I need recommendations for a failsafe SPF 50+ waterproof suncream so they can at least cool off on the pool. DCs are v fair skinned & will be wearing hats & rash vests but I need something for faces etc.