A portion of the investment, worth 1.28 million yuan, has been used to upgrade 32 toilets around the lake, and the rest is being used to install 13 environmentally friendly toilets and 11 unisex toilets, said Zhang Shengxiang, head of the business magement department of the Qinghai Lake tourism company, which is in charge of the area's tourism investment and development. Qinghai Lake is Chi's largest inland and biggest saltwater lake. As a tiol tourist attraction, it received 3.2 million tourists from home and abroad as of mid-October, up 77 per cent year-on-year. But visitors have complained about the lack of toilets in the area. In May, the area was criticised by the government for its toilet problem. However, the situation is improving. The toilets are clean and tidy now, equipped with hand washing gel, tissue and hand dryers. Unisex toilets have extra baby seats, safety hand-rails and speakers.