Life underneath an air conditioner isn't all that amusing. Going out in Seoul while it's harshly humid isn't fun either, and that's where these water events come in handy. You'll be able to let out your summer stress while getting soaked—you might even feel a little younger after these festivities as they'll surely bring back some childhood memories.
Seoul summer's brutally humid, which makes staying in an air-conditioned room sound more tempting than anything. But there are better things to cool yourself off than sitting and sleeping through the summer: getting soaked at an intense water gun fight with 2,000 people, rocking out at a music festival and getting cooled down with pints of beer, enjoying an artsy film with a glass of Merlot in your hand at an outdoor cinema, cruising on a yacht and picnicking 'on' the river, chilling on the rooftop or a swanky hotel lounge for a an unlimited booze deal.