Those nice folks over at Citysocializer want to bring people together and have the most fun possible. Tonight, that means a party of epic proportions. Think Hawaiian themes, DJs, and nautical adventure. You'll be drifting down the river, hula dancing your way past London's famous landmarks along with some of the best people in town. And with a free drink thrown in for good measure, this looks sure to be a night to remember (or not). General admission. Over 18s only. Event ends 11:30pm. Dress code: Hawaiian.