I hope you have something planned for today! Between 2018 and 2020 I worked as a GetOutside Champion for the Ordnance Survey: part of a team of people in various locations around the country encouraging people to get outside in different ways. Some of them were athletes, bloggers, Instagrammers, runners, paralympians and TV personalities. I was just a geography teacher using my blogging and role to encourage fieldwork and other outdoor activities in the curriculum. We added a Fieldwork Week to my Presidential year, with thanks to Paula Richardson for her efforts there, and expanded it to a Fieldwork Fortnight last year. There is plenty of advice on the Ordnance Survey's page for this day when people are encouraged to spend time outdoors. And don't forget to follow the Countryside Code.
A blog to provide ideas on teaching LANDSCAPES & provide support for the GA KS3 Teachers' Toolkit publication of the same name