Discover Vietnam Lie back on your very own junk and enjoy the languid beauty of Halong Bay s limestone outcrops, p.136. Get lost in Hanoi s Old Quarter; sup on streetside pho and toast your fellow diners with a bia hoi, p. 95. Squeeze into the Cu Chi Tunnels and marvel at the engineering ingenuity that kept the VC hidden from enemy fire, p.378. Join the locals in an afternoon pick-me-up of snake s heart and a cup of serpent blood, p.48 In This Guide: Three authors, 133 days of in-country research and 105 maps - more than any other guide. Content updated daily - visit lonelyplanet.com for up-to-the-minute reviews, updates and traveler suggestions.