Plain coconut water is literally just the water on the inside of a coconut. So if you can get coconuts at your grocery store you can get coconut water. I also found this recipe on how to extract and flavor the water: http://www.eatnapplay.net/2013/03/04/make-your-own-coconut-water/.
About Celebrity Solstice. Celebrity Solstice is a large ship, carrying 2850 passengers and 1246 crew, and sails from Sydney, Australia and Auckland, New Zealand.
The June Solstice. (Not to scale) 'Solstice' (Latin: 'solstitium') means 'sun-stopping', because the point where the sun appears to rise and set, stops and reverses direction after this day (ill:Not to scale) The date varies between June 20 and June 22, depending on the year, and the local time zone. June Solstice in New York, New York, USA is on