Congrats KimDillon! and welcome to the forum I'd suggest you bring some sunscreen, mosquito repellent, and loose, cool clothes. June is HOT in Cancun, so it helps to stay cool n comfortable in loose natural fiber summerwear. As for the rest - ie decor items for your wedding, OOT bags, etc, it would depend on your wedding plans, and what you have in mind for your guests. Wishing you all the best with your plans, and that your wedding turns out exactly as you've dreamed it will.........Cheers