Not a bad idea, of places accepting Sterling, Dylan. Not sure what legal implications could be, if any.
(I could change sterling for euros but the exchange rate would be poor , e1.32, as that was the rate I got many months ago)
However, with the current exchange rate still hovering around that e1.38 mark you will certainly get even more value for money than last year.
Whatever happens , as has been said many times, Arillas locals will look after you.
Negg