Scuttle Panel Drain Holes - how to clean / where do they go?

Whipped off my wiper arms and scuttle panel trim this evening to clean it up a bit, the n/s drain hole appears to be clear, but the o/s one seems to be a bit blocked, and ideas on how to clear it? I am reluctant to use wire (i.e. straightened coat hanger) as it can puncture the drain tube.

Secondly, where do these go? I am assuming that the drain into the wheel house, behind the liner?
 
i think it comes down near the wheel arch as water seems to always continue to come out of there after a wash
 
i think it comes down near the wheel arch as water seems to always continue to come out of there after a wash

tried a jetwash?