Sand And Water Table

I Am Looking At Getting Some Kind Of Table For Our Deck. We Live 15 Mins From Beaches So I Am Thinking I Should Just Stick With A Water Table (or Just A Sand Table?). This Is A Great Question For Experienced Moms And Caregivers To Help Me Decide. Some Can Be Nightmarish, I Know. Brands Are Helpful But I Am Just Looking For Your Opinon On Sand And Water In General. I Have One Daughter, She Is 20 Mos.