Inclusion Criteria:  aged 65 years or older living in the community able to walk with or without mobility aid for at least 10 metres physically inactive i.e., less than 150 minutes of moderate-vigorous intensity ready to participate in physical activity and no medical concerns using the Physical Activity Readiness Questionnaire (PAR-Q+)* score of ≥ 18 on the telephone version of the Mini-mental State Exam able to speak English able to have access to a computer, tablet or mobile phone capable of running the videoconferencing platform (Zoom) able to access internet and email  Exclusion Criteria:  • receiving on-going treatment for any medical condition that would prevent safe participation in physical activity  living in long-term care participating in other behavioural interventions that focus on improving physical activity