The area is all open to the public, though it needs benches or something.

Just last year I snuck in there when the site was under construction and sat on those stairs.

Now this is filled with water.

Meanwhile, the part that previously was in use while the square was under reconstruction is now closed for renovation.

Please remember that these photos are all copyrighted to me. If you want to use them in any way, there's a 90 per cent chance I'll give you my permission, and be able to give you a copy with a higher DPI.
Copyright Daehanmindecline 2016