It is customary to provide 18% – 20% gratuity for Massage services. At KNS, we take the guess work out for you by suggesting an 18% gratuity upon payment for your service. All gratuities are paid in full to the massage therapist. Of course, if you would prefer to leave a different amount, please let us know and we will adjust the gratuity as you prefer. We will gladly issue a full refund if your cancellation is made more than 24 hours prior to your reservation (hydrotherapy or massage). Please note that we will charge the full amount inside of 24 hours prior to your reservation.