Butt Balancing (or Boat Pose) is a great core exercise that you can do anywhere. In addition to the core muscles, balancing like this challenges the deep hip muscles as well. And, as the name implies, it also helps you build your balance. It’s pretty fun too!
As I do in this video, it can be helpful to start practicing this exercise on a chair or stool before you try it on the floor. You can also make it harder by straightening the legs, one at a time or together.
And for some added challenge (and fun) you can try shimmying backward in this pose. You probably won’t get far but you will feel it in your abs!