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? What are the benefits of staying at LEGOLAND Beach Retreat? Can guests wear swimsuits inside The Lighthouse? What is LEGOLAND Florida’s Wild Side Mini Golf?