How is the transportation from Luohu or Lok Ma Chau in Shenzhen to langham place in Mong Kok and then to the city gate cost-effective? Is it better to buy a one-day pass or an octopus?
Take the train from Luohu or Lok Ma Chau to Kowloon Tong, and then take the subway from Kowloon Tong to Mong Kok. You can easily find Langham Place as soon as you get off the subway. To go to Donghui City, transfer from Mong Kok to Tung Chung by subway. Just exit C. You can't go in and out from Luohu or Lok Ma Chau if you buy a one-day pass. I suggest you buy Octopus.