The Marsh, A Center for Balance and Fitness | 734 followers on LinkedIn. The Marsh is a comprehensive wellness and fitness facility, open to the public and offering memberships, situated on the edge of a scenic, protected wetland in Minnetonka, a west suburb of Minneapolis, Minnesota. Established in 1985 by Ruth Stricker, a pioneer in Mind-Body work, The Marsh is founded on a philosophy to inspire, challenge, educate and support a healthy attitude toward life with individual guidance and professional care. Our comprehensive center and personalized services include: - full service Spa with traditional massage and complementary Eastern therapies (acupuncture, Shiatsu, etc