thank you for telling me how you overcome Lockdown-blues by cherishing memories of past journeys!
My second resolution in Lockdown-time is to stay curious. It is so easy to become bored and, as the radius for walks diminishes, think: "Oh, I know it all... blah...."
No, one doesn't know it all. In Zen they recommend: Look at everything with beginner's eyes. Which of course I cannot. But when I take my camera with me, or try to draw something, I look more attentive.
And if it rains, I just take a beautiful umbrella, and the world looks friendly again.