My 9 year old daughter was so upset when she broke her wrist the week before our gold coast holiday. Thankfully my husband found Bloccs online and we ordered straight away.... but it arrived a few hours after we'd left home. It was difficult to find bloccs in any store for purchase in Australia but we found one chemist about an hour from our Queensland hotel and got one on our first day. It made such a difference to her holiday. Definitely water proof. She was loving the pool with friends. Need more stockists in Australia. It's a winner of a product.