This page cites some studies that have already been done into this idea, and the prognosis is not good. Even if we embarked on the absolutely massive undertaking of building the pumps, desalination facilities, and wind turbines necessary to do this at scale, and committed to the massive cost of maintaining all of those machines in the harsh environments of the arctic/antarctic, the effect would only be preventing a small amount of sea level rise in the short term.

So yea sinking some cruise ships seems to be the best option.