What/Where are these places?

On the attachment are 2 locations I do not know where they are located. Are they familiar to anyone? Maybe a cutscene or something?

The first spot by Chokhin is a NF arena map that was removed prior to release. I've never seen that small island by Chahbek.

Really? Wow, that arena seems big. And the one by Chahbek seems like the one area in Costume Brawl, I'm not sure though.

If you're thinking you need to map those, I doubt you do

No, these areas do not count to the cartographer title track.

Those areas don't count toward cartographer.
The small island is where NF tutorial PvP is fought (level 10 and below).

The area above Chokhin - I seem to recall someone photoshopping this pic a long while back and having everyone on Guru up in arms about a new area - don't know if it ever was a real place.

Can't say I know about the second area near Chabek.

It 'was' a real place; it was accidentally put into the RA/TA arena map distribution.