I am not a teacher.
I like to accompany tourists to where they want to go.
I guess, it is the right one.
The word 'to' is a preposition and it links tourists and 'where they want to go'. A preposition links a noun or a pronoun with other parts of the sentence.
I like to accompany tourists where they want to go.
In this sentence, the phrase 'where they want to go' behaves like adjective phrase but it doesn't make sense to me.
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