A desk or office that provides maps, information, and guidance to tourists; often found at stations or tourist spots (also called 'tourist center' or 'information').
駅の出口に観光案内所があって、地図をもらった。
There was a tourist information center at the station exit, and I got a map.
観光案内所のスタッフが英語で丁寧に説明してくれた。
The staff at the tourist information center explained things politely in English.
観光案内所では地元のイベント情報も教えてくれる。
The tourist information center also tells you about local events.