The coronavirus pandemic resulted in limitations on movement, impacting both physical activity and mental wellbeing. This dataset examines changes in physical activity and wellbeing across the coronavirus pandemic. Between 1st May- 2nd June 2020 315 UK adults participated in an online survey reporting their average weekly PA prior to lockdown (retrospectively), alongside physical activity in the previous 7-days using the international physical activity questionnaire short form. Participants also identified their modes and locations of physical activity and rated the importance of physical activity during lockdown compared to prior to the pandemic. Mental wellbeing in the last month was also assessed via the Depression, Anxiety and Stress Scale short form and the short form Warwick Edinburgh Mental Wellbeing Scale. Participants also completed the nature connection index. All participants who were recruited during May-June 2020, were asked to indicate whether they would be happy to be contacted regarding future research. All participants who agreed were subsequently contacted in June 2021 to ask whether they would complete a follow-up survey. A total of 165 participants were contacted, with 56 completing a follow up survey. Participants completed the follow up survey between 14th June and 23rd July 2021 and reported their average weekly physical activity during the January 2021 lockdown (retrospectively), and in the previous 7-days using the international physical activity questionnaire short form. Participants also rated the importance of physical activity during the January 2021 lockdown compared to previous lockdowns and at the time of the survey compared to the January 2021 lockdown. Modes and locations of physical activity at these timepoints were also identified. Participants also repeated the measures of nature connection and mental wellbeing.