It’s been mid thirties in Corfu everyday since we’ve been here.
We bought a mixture of sun creams, started off using Lidl’s Cien factor 30. Used this for the 1st 3 days and no sun burn.
Then on day 4 went to Boots own brand factor 30, and we both got sun burnt and I think we spent less time in the sun that day.
Presuming SPF is governed and regardless of make factor 30 is factor 30, suggests the Boots sun cream is not very water resistant compared to Lidl’s.
Germans just do it better.