Bethesda Salt Cave: Home of Message Metta offers outstanding massage and salt therapy services creating a relaxing experience to help heal the bodies aches and pains. Our salt cave has been constructed with an enriched micro-climate, allowing the body and mind to relax not only on a cellular level, but also to recalibrate its natural sense of balance. In Salt Therapy, also known as Halo Therapy or Speleotherapy, all five senses are engaged using the healing power of nature. Join us for a session today!