You should have been out at sea feeling the wind in you hair not dossing around!
If you were dressed as per your photograph it's no wonder you got burnt!
Keep slapping on the after-sun.
I would just like to confirm the burnt bottom situation, what Pauline fails to mention is that due to the fact that she was unable to sit down the whole of Saturday evening she was open to suggestions for a cure, as you may have guessed we were all openenly taking the p*** out of her and suggested smearing natural yoghurt over it much to Mrb's delight. The following morning there were shreeks from Tommy later to have been sourced by the smell of gone off yoghurt.