What to pack?...

maps & directions
itinerary of events
shoes for hikes & rocky beaches (like water socks or tennis shoes)
natural suncreen, or coco oil
bathing suit(s)
natural insect repellant
clothes that don't wrinkle
clothes that dry quickly
wedding clothes (garden casual, light clothing, flat shoes/sandals, like sundresses, linens, wrap or jacket for when sun goes down...jacket/tie NOT required)
beach towel (unless you can borrow from rental)
beach wrap/sarong!
camera, phone & chargers