This exercise will also focus on working the arch. You will need to use a barre, or hold onto a wall near you for extra help with balance.
This combination will focus on releves. In first position, make sure your knees are completely straight as you move into releve. Your arches should be pushing out and your weight should be in your big toe rather than your pinky toe.
You can do around 16-25 releves. It is also recommended to do this exercise with your feet in a parallel position. The same rules apply to this exercise, but also be sure to keep your ankles together.
You should be able to feel your muscles working through each releve. This is a great exercise for your arches, as well as your achilles tendon. Be sure you are setting your heels down all the way between each releve to prevent injury to your achilles.