I'm curious, does that look accurate to you? Do you know why it jumped by 41% for parks?

At least here in Finland you couldn't miss that when going outside. One factor is sunshine. Another probably kids getting unbearable after not having to go to school for many days. Probably also applies to parents working from home. Lot of families taking a walk. They closed natural parks after they got overcrowded.

Weather. In the German data, you can see the days with lots of sunshine.

One factor is that for many countries, that's the only activity that people are now allowed to do outside of the house.