The noun 游客 (yóukè) means 'tourist' or 'visitor.' It refers to someone who travels to or visits a place for leisure or sightseeing. It is commonly used when discussing tourism, attractions, and travel, such as 对游客开放 (open to visitors).
每年夏天都有很多游客来这里旅游。
Měinián xiàtiān dōu yǒu hěn duō yóukè lái zhèlǐ lǚyóu.
Every summer, many tourists come here to travel.
这个景点对游客免费开放。
Zhège jǐngdiǎn duì yóukè miǎnfèi kāifàng.
This scenic spot is open to tourists free of charge.
游客们纷纷拿出手机拍照。
Yóukèmen fēnfēn ná chū shǒujī pāizhào.
The tourists all took out their phones to take photos.