H2O is Club Penguin's brand of mineral water, dispensed by a vending machine. The bottle has a white cap and a blue label with text that reads "H2O". H2O is the chemical formula for water, composed of two hydrogen atoms and one oxygen atom. Much like Orange Juice, penguins cannot interact with it, leading many to pretend to buy or use it.
Appearances in-game
Appearances during parties
- April Fools' Party 2008 (Boiler Room)
- Water Party 2008 (Boiler Room)
- Music Jam 2008 (Cove, Back Stage)
- Ninja Construction (Ninja Hideout)
- Music Jam 2009 (Cove, Dance Lounge, Back Stage)
- Penguin Play Awards 2010 (Ski Hill, Dock, Backstage)
- Music Jam 2010 (Dock, Dance Lounge, Beach, Cove, Back Stage)
- Music Jam 2011 (Dock, Dance Lounge, Beach, Cove, Back Stage)
- Make Your Mark: Ultimate Jam (Forest, Cove, Snow Forts, Beach, Dock, Stage)
- Star Wars Takeover (Meeting Room)
Trivia
- An H2O bottle was an item in Sensei's Water Scavenger Hunt.
- Other than H2O, water, even in its pure form, also spontaneously contains hydronium (H3O+) and hydroxide (OH-) ions.