It ain’t Everest but it ain’t easy!
• 70.0 km (43.5 mi)
• 4 days, 3 nights recommended
• opened 11 January 2010 to commemorate the 2nd anniversary of Sir Edmund’s death
Bookings are required for the Hillary Trail campgrounds, but not for the trail itself.
The last day is LONG, be warned. But you can give it a go year round.
Click PLAY or get a preview on YouTube.
• detailed map (PDF)
(via Our Hiking Blog)
besthike.com 
It is all possible to do the whole trail in a day, 18 hous track running. The NZ Wildness magazine last year reported an Auckland runner started from north end run to south end then return, took him less than 30 hours for 140km. Amazing race!