The adventurer will be joined by BMF master trainer Tommy Matthews for a live-streamed group workout on Instagram from 8am at The Coaling Jetty in front of Battersea Power Station and River Thames, as millions of people join the day’s celebrations.

Coordinated by ukactive, the theme for National Fitness Day 2020 is ‘Fitness Unites Us’, as communities across the UK come together to celebrate our common interest in fitness and the power it has to bring us together, especially in light of the Covid-19 pandemic.

Schools will unite for 10 minutes of activity at 10am, workplaces will host wellbeing and exercise sessions, and local clubs and community groups will host virtual and physical events to showcase their activities.

“It’s been such a hard year for so many with the Covid-19 pandemic, but physical activity has helped millions of people to find connection and to stay strong, both physically and mentally,” said Grylls.

“National Fitness Day is about making sure everyone has the opportunity to be more active, whether that’s in the great outdoors, through local fitness and leisure facilities, at school, in the workplace, or with an online workout at home.”