Walking in nature is the best way to spend time. You get great benefit and a lot of fun. People who do not do so lose a lot. Personally, I prefer walking in the park. Especially it helps when you are very tired and you need to get a dose of relaxation. This is applicable even when you just want to pause in your work and give the brain a reboot. That is, if you work a lot, then there is nothing better than just going out and enjoying the surrounding nature. Breathe in the air and feel alive.
By the way, many writers and freelancers get inspiration when they go out to work on the street. You just take your laptop with you to the street and go to the park. It's nice to be out in the open air and work at the same time. This increases productivity.
Unfortunately, the trend is such that due to the impact of people, nature is destroyed. We must reconsider our views on this. Especially in big cities where the air is polluted so there are not enough trees. Trees are the "lungs" of the planet. But unfortunately the wood industry brings big profits to the monopolists.
I often go to the forest (in summer I pick mushrooms) and I know that finding there acts favorably. You get a charge of energy and clear your mind. I, like you, call on people to take care of nature and often spend time relaxing in nature.
Thank you!