-- clothing — sun
cap is a must, footwear, hygiene products; — dinnerware set your child usually
uses; — shampoo for kids; — Sunscreen for kids; — compact folding buggy / sling; — toys, books, coloring books, pencils; — beach and sand toys for the kid (shovel, rake, bucket, molds); —
swimming ring; — beach umbrella (if there's no any on the beach); — travel medical kit.