A house keeper cleans the table at a guest house on the Tuoji Island of Changdao County in Yantai City, east China's Shandong Province, Sept. 19, 2018. Fishermen on the island transformed local houses into homestays to promote the tourism development. (Xinhua/Lu Ye)

Photo taken on Sept. 19, 2018 shows the yard of a guest house on the Tuoji Island of Changdao County in Yantai City, east China's Shandong Province. Fishermen on the island transformed local houses into homestays to promote the tourism development. (Xinhua/Lu Ye)

A house keeper collects water from a well at a guest house on the Tuoji Island of Changdao County in Yantai City, east China's Shandong Province, Sept. 19, 2018. Fishermen on the island transformed local houses into homestays to promote the tourism development. (Xinhua/Lu Ye)

People walk past a guest house on the Tuoji Island of Changdao County in Yantai City, east China's Shandong Province, Sept. 19, 2018. Fishermen on the island transformed local houses into homestays to promote the tourism development. (Xinhua/Lu Ye)

A woman cleans the room at a guest house on the Tuoji Island of Changdao County in Yantai City, east China's Shandong Province, Sept. 19, 2018. Fishermen on the island transformed local houses into homestays to promote the tourism development. (Xinhua/Lu Ye)