向むこうに着ついたら

expression

when you get to the destination; once you arrive there

A set phrase used to talk about what will happen or what to do upon reaching a place. The たら is the conditional form of 着く.

• 向むこうに着ついたら電でん話わしてください。

  Please call me when you get there.

• 向むこうに着ついたらまずホテルにチェックインしよう。

  Let's check in at the hotel first once we arrive.