If you want the guarantee of an unobstructed view,you can reserve your spot from ;65 up to 15 days before you go. Simply choose your cabin at the time of booking or you can request your cabin number after you have booked by calling 01 693 7700 (ROI) or 028 90 389 387 (NI) between 9am-7pm Monday to Friday, 9am-6pm Saturday or 10am-5pm Sunday. If you've already booked a specific cabin, you'll have been told whether or not it has a restricted view.