No hot tubs in the Retreat on the Koningsdam. We are very much looking forward to them on the NS, but the Koningsdam is our local ship for our Thanksgiving cruises. I might possible skip paying for the spa for the week if there was a hot tub in the Retreat. We love it anyways, the breeze, the service, the peace and quiet, the proximity to the Crow's Nest for coffee and cocktails. Once we started booking the Cabanas, we actually just went down to booking a spa inside cabin, so we are always 1 -2 floors walking from our room to the cabana.