OneGym in Central Newcastle | Facilities, hours & reviews OneGym is a gym in Central Newcastle, offering gym and fitness facilities, strength and cardio training, membership enquiries. Address: Eldon Garden, Morden St, Newcastle upon Tyne NE1 7RAOfficial website Things to do today Things to do tomorrow This weekend Free events Family events Kids activities in Newcastle Live music in Newcastle Live sports in Newcastle Cinemas in Newcastle Gyms in Newcastle All Newcastle events