Clothing/Shoes/Weather Gear: I would recommend that you bring a couple different layers for your travel here in June. It was definitely warm during the days on our trip, but it would get quite nippy when a hefty breeze would blow in. I was fine in a windbreaker and jeans, but my wife had her warm coat with her!
walking shoes, jacket, umbrella
Miscellaneous: Plenty of cash as there is no cash ATM (automatic teller machine) anywhere here.