To become a recreational therapist, it is necessary to have good educational credentials in recreational therapy or in any other health care-related subject. Many colleges offer bachelor’s degrees, associate's degrees, master’s degrees and doctoral degree programs in various types of recreational therapies.It will be a good idea for a student who wants to become a recreational therapist to research the offered programs.nyone who wants to become a recreational therapist must also study human anatomy, physiology, psychology and medical terminology. They must learn about different types of illnesses and disabilities, about professional ethics, and about the use of assistance devices and technology.