Is the swimming pool heated at LEGOLAND Beach retreat? Yes. The pool is heated year-round to approximately 82-85 degrees Fahrenheit. Was this article helpful? Related articles Does LEGOLAND Beach Retreat have a beach? What is there to do at LEGOLAND Beach Retreat? Does LEGOLAND Beach Retreat offer entertainment like LEGOLAND Hotel? What are the hotel pool opening hours? What are the benefits of staying at LEGOLAND Beach Retreat?