Yes, if you pack bottled water for the airplane, you will be charged an overweight bag fee if your bags are over 50 pounds. Check with your airline to see how much they charge for overweight / heavy bags.
2007 - Majesty of the Seas (Bahamas)
2009 - Enchantment of the Seas (Western Caribbean)
2010 - Freedom of the Seas (Western Caribbean)
2013 - Golden Princess (Alaska, roundtrip from Seattle)