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 What is there to do at LEGOLAND® Beach Retreat? What are the benefits of staying at LEGOLAND Beach Retreat? Does LEGOLAND® Water Park provide towels for day guests? Why can’t I book the LEGOLAND® Beach Retreat for my visit? Do I need to make a reservation at the hotel restaurants?