You can access it via one of the warp pads at the spawn, or from the spawn's nether hub (if you're a Zedling or higher).
To save spamming images to the forum, I decided to create a LVS Screenshots Folder. (I'll add it to my forum sig too.)
Inside you'll find a few shots of the little ribbon cutting we held at the River Bend's nether entrance.
https://goo.gl/4uBVwF
...but if you haven't, go check out the new area. Words cannot do justice.