get there正确。there是副词,前面不加介词to。
get there
到达那里;取得成功,实现目标
例句
Get outta there! 快出来!
We can't get there before two at the best.
我们最早也要两点钟到。
I'll write you
as soon as I get there.
我一到那儿,就给你写信。
If you won't drive me, I'll have to get there on shank's pony.
要是你不开车送我,那我只好走着去了。
It's easier to get there on foot than by car.
到那儿去,步行比坐车容易。