This "trail" consists of places where backpackers hang out such as cafes, restaurants, bars etc. It's cool that fellow travelers can recommend many places to eat/drink/go but might be a bit of a shame to travel all the way to spend all time with foreigners rather than locals!
You can get lost among people on Bangla road. Everything is enlightened and blinding, there's so many bars and most of them almost full. Good place for a big all night party.