You continue your journey to the unknown places of the salt mines.
ALSO, the history doesn't ends here.
I like all kind of comments, don't hesitate in show me your opinions. 
- If you want to send me a record of you playing my map,
follow this -
When you start playing,
type in the console "record 'your_name_123_whatever'"
So you will record your playing as a dem. file
this file will appear in:
\Steam\steamapps\common\portal2\portal2
Notice that every time the player dies, or the game have to load a new map, the recording ends.
So maybe you will need to record various times.
You can send me the dem. file to my mail:
::Changes::
- New Thumbnail
- NO Underground Timer
DOWNLOAD Somewhere Underground 1 HERE
>> Somewhere Underground <<
File Name: Somewhere Underground -SU2 1,1-.zip
File Size: 10.55 MiB

what i did was that any thing that is small but many corners or things i can see through i made func_detail that do that it is always rendred if you can see the visleaf that it is in. ( my home made cake in Ka Level 1 took 30 min less to build then func_detalj.)