ION Strength and Conditioning in Llanishen | Facilities,... ION Strength and Conditioning is a gym in Llanishen, offering gym and fitness facilities, strength and cardio training, membership enquiries. Address: Cheviot Cl, Cardiff CF14 5JAOfficial website Things to do today Things to do tomorrow This weekend Free events Family events Kids activities in Cardiff Live music in Cardiff Live sports in Cardiff Cinemas in Cardiff Gyms in Cardiff All Cardiff events