Just did this yesterday. I was trying to get to the Aggie Art Gallery. My second time through the birth canal. Turned right once we got into the next large room. Went through the No Name crawl. Went a bit furhter. Not sure where I ended up turning back at. Got a little turned around and concerned about not finding my way back out. Fortuantely, I found some reflector squares someone had placed. Left my daughter alone for about an hour (god bless her for keeping her cool - yes, she had a working headlamp the whole time) while I went on. I was so tired and malnourished when I headed back I was worried also about the exertion required to return. Daughter was very happy to hear my grunting and groaning off in the distance. Exiting through the birth canal seemed quicker than entering. I chalk it up to desparately wanting out. I don't think I'll be doing that again... Birth canal to the first good sized chamber - yes. Any further - I really don't think so...