This is a subjective question and depends mostly on the weather we are having at the time.  Due to adverse swells and other conditions, the beach may or may not have a lot of sand.  Those times when the beach is not sandy is unpredictable.  the water directly in front of the rentals contains reef which is fairly good for snorkeling.  We are located on the North side of Hauula Bay and good permanent sand bottom swimming is a short walk down the beach in front of the public beach park area.