From the parking lot it's only a short 5 min walk to the huge 'windows'. Once there you will have a fantastic view over the valley towards the mountain range.
You reach 'The Windows' shortly after you passed by 'Balanced Rock', which can be seen from the car.
Turret Arch is part of The Windows. Double Arch
It is adjacent of The Windows on the other side of the street. Another 10-15 min walk.
For "The Windows" the best light is in the afternoon. For Double Arch it is the early morning.