What are some ways to get from the Port Authority on 41st st NYC to the Manhattan Cruise Terminal  where NCL docks?  Rome2Rio has two choices  1) taxi  - is it really only $11-14 or 2) walk- 24 minutes.  How feasible is it to walk?  I am very familiar with NYC from many years ago- grew up across the river in NJ.  Would this walk go through a seedy neighborhood (in the am)  I plan to have a carry on  so luggage not a problem but the taxi is a no brainer if only $11-$14  for ease and safety.