arrive (arrival) to a place

[SARDORBEK]

1) "Each student is required to arrive to the Czech Republic to commence the study on
the date specified in the Decision on granting the scholarship. Any delay is possible only
if the student cannot arrive to the Czech Republic due to serious obstacles."
2) "Upon arrival to the Czech Republic, students must be prepared to bear initial
expenses...."

The fragments above are taken from the official instructions for the award of scholarships
of the Government of the Czech Republic.

Dear Teacher!
We were taught that after the verb arrive we must use at/in.
After this verb can we also use the preposition "to" or is it wrongly used?
As to "arrival", I have no knowledge about this? Which preposition is normally used?

Many thanks...

[Alan]

Yes, 'to' is incorrect. 'In' is reqiuired here.