9 days days until we arrive in PV. So excited! Anyway, a friend of mine who recently went to Jamaica told me they required she wear biodegradable sunscreen when she went for her snorkeling and dolphin excursions. She also said it was rather expensive (the special sunscreen). I've never even heard of that so I'm wondering if this is something that is also required in Puerto Vallarta for these kinds of excursions. Does anyone have any insight? Thanks in advance!