Half Moon or Ardha Chandrasana is a beautiful and very challenging posture. If you are working on opening your pelvis to prepare here are some ideas that will help. Because the hips are opening away from each other in Half Moon, postures that do the same like Warrior Two, Triangle and Extended Long Side Angle will help deepen this opening for you. These standing postures will also strengthen your legs which is crucial in this balancing pose. You can also explore the opening of the hips in this posture by practising it at the wall or a table. Allow your front bottom hand to rest on the wall or other support and focus more on stacking the hips into one line.