Numerous
ways lead to Hoonhay Valley Lodge! The easiest (not necessarily
the very shortest) route takes the following way:
Take
Colombo Street towards the Port Hills 
Colombo Street is the main road through the centre of the city
(Square) going north / south.
Follow
Colombo Street right to the end at the foot of the hills. Turn
right at the Roundabout into Cashmere Road towards 
You
now stay on Cashmere Road following mainly the foot of the hills
and the “Heathcote River”
At
1.2km from that first Roundabout you pass “Princess Margaret
Hospital” on your left and at 3.1km the turn off to the
hill suburb of Westmorland. 300m further on, watch out for and
take the turnoff to the left into
Cashmere Road 
Note that the main traffic flow goes straight on into Hendersons
Road and away from Hoonhay Valley Lodge!
If
you have not missed the turn off you will arrive at Hoonhay
Valley Lodge after another 1.2km on your right just before the
intersection with Hoon Hay Valley.