What is a course in spa therapy? A course in spa therapy gives students the tools and knowledge they need to become a massage therapist.Completing a spa therapy course offers many benefits. The course provides students with applicable skills and knowledge, which allows them to find jobs with greater ease. Students who are already employed in this field can look forward to more advance opportunities. After finishing the course, the majority of students choose to work as massage therapists or educators. Massage therapists provide massages and other services in a spa environment, helping their often overstressed clients to relax. They may also be in charge of providing skin care treatments as well.