Can Children be unaccompanied by the hotel pool? Children under the age of 14 must be accompanied by a responsible adult at least 18 years of age. Children under 48 inches must wear a provided life jacket. Was this article helpful? Related articles What are the hotel pool opening hours? Is the hotel pool heated? What are your hotel pool restrictions? What Nightly Entertainment do you have at the hotel? What is the advantage of booking through LEGOLAND Vacations?