QC is really nice almost all the time. The "quietest" was when we boarded early on our departure day. After lunch we met a few friendly people but hardly anyone was there yet. It's busy during sea days but I'm sure on port days it's really nice as well.
I agree with xABearx. Quiet Cove, and the other pools, were usually very quiet late at night (say 10 and after) and early in the morning. At other times the pools can get very busy and thus have a lot of associated noise. Especially on sea days.
I spent a lot of the time during the sea days in my January cruise at QC. There was hardly ever a crowd there. Certainly always able to find a chair. We went to the hot tubs twice at night and we were the only ones there. It is really quite nice.
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