On Voyager the dance floor in the Voyager Lounge is @ the same size as the one on Diamond in the Club. However, before dinner and until the show lets out you'll have it pretty much to yourselves. Lynn and I like to move around quite a bit and we found it adequate for waltzing, etc. The dance floor in the Horizon Lounge is much larger and it's very seldom crowded- sometimes after the show. On our Canal cruise we found the music in the Voyager Lounge (a duo) to be very good before dinner and after until the karaoke started later at night. The music in the Horizon Lounge was geared more to the older set, but the guy playing and singing played good dance music. You can also get in a little dancing before the show in the Constellation Theater, but we didn't care much for the ship's band for dancing; they couldn't keep the beat. Mariner only really has one good place to dance and that's the Horizon Lounge. The Stars Lounge is a disco setup and is very seldom used. We usually dance @ 3-4 hours/day and enjoyed both ships. Of course, we really enjoyed dancing to Gerry, Mona Lisa, and Danilo in the Club aboard Diamond too.