Your Premier Destination For Health And Fitness Tri-City Wellness Center, located in Carlsbad, is the only Health and Fitness Experience of its kind in the region. At Tri-City Wellness Center, we believe that both a healthy mind and body are essential to healthy living. That's why we approach health and fitness from a medical perspective; while it's important to treat those who are ill, it's equally important to continuously improve the quality of life for those who are healthy people of all fitness levels.