Hello SnorkelGal, sadly there is no priority lines for this cruise 😢 a lot of Diamond and Platinum perks are not due to the high volume of those tiers on this trip. It is happening a lot on cruises over 10 days. Hopefully you get to see and experience some perks for your 1st Platinum sailing but definitely won't be like a true experience. I am 1 cruise away from Diamond but my husband already is. Besides the priority boarding one of our perks we really appreciate is the unlimited same day laundry. After receiving our email for limited benefits this cruise, I popped a few more things in my luggage 🤪