This is still available. Enter the guests services, left of entrance gates and request for the prayer room. Be patient and have you wudhu before entering as there is no toilet. Do keep the room clean and be mindful of the timing so everyone can use this excellent facility.

Go to guest service near the entrance (dont follow the map given) and ask for prayer room. They'll understand

Go to Guest Services on the left side from the entrance and ask the front desk for a place to pray. They will kindly provide you a private room (the conference room) for salah! However, the guest services building does not have a toilet, so make sure to do wudhu ahead of time (there is a bathroom near the lockers across from the guest services building, or you can ask the front desk)