I'm back from holiday so here's another one for you......
Standing tall, move your right foot back as far as is comfortable keeping your toes pointing forward and your heel in contact with the floor.
Bend your left knee taking care that your knee doesn't extend over your toes and maintain good posture keeping your head up and your core engaged.
You should feel a stretch in your right calf!
Hold for several seconds then swap legs.....
I'd repeat this 2 or 3 times.
As always, don't overdo it and enjoy