It's not just a party on a boat on the Thames. This is The Hurlingham, and like all the best things in London, it's almost totally absurd. A luxury nightclub with plastic grass, eye-rattling speakers and a crew of the naughtiest nautical types this side of Bermuda, it's the baddest thing to touch H20 since HMS Belfast. What else? Well, it's a stonking great bargain, it's brand new to YPlan and it sails tonight. Near, far, wherever you are...be at Westminster Pier for 6:30pm. Over 18's only. Valid ID required.