EXCERPT: Beijing may be all about business and sightseeing during the day, but the city changes into a creature of bright lights and cool bars once the sun sets. The bars and clubs are endless, but one area our group has found to be the ultimate chill spot, if not also the most touristy, is Hou Hai, a small lake situated in Beijing’s northwest region of Haidan. It’s a 10-minute cab ride from our hotel...