在 + 那儿 / 离 + 那儿 + Distance
The pronoun 那儿 (nàr) means 'there,' pointing to a place away from the speaker. It is the northern/standard Mandarin equivalent of 那里 (nàlǐ). It is used to refer to a previously mentioned or contextually understood location and commonly appears after 在, 到, or 离.
你先到那儿等我,我马上就来。
Nǐ xiān dào nàr děng wǒ, wǒ mǎshàng jiù lái.
You go there and wait for me first; I'll be right there.
那儿的风景特别美,值得去看看。
Nàr de fēngjǐng tèbié měi, zhíde qù kànkan.
The scenery there is especially beautiful; it's worth going to see.
离那儿不远就有一家超市。
lí nàr bù yuǎn jiù yǒu yì jiā chāoshì.
There's a supermarket not far from there.