Public transport alternative 1 subway; Holmenkollbanen (T-bane number 1 Frognerseteren) to Holmenkollen station and 10 minutes downhill walk from there. Walk down the stairs from the platform underneath the tracks, left diagonally across the small roundabout area and follow the path down the hill. Cross the first road (Setra vei) and continue the path until the second road Måltrostveien where the path ends. Turn right on Måltrostveien, walk about 150 meters and turn left (attention; this is the turn many people miss), walk past some concrete barriers used to block for through-traffic, and you enter NCVv which curves to the right. Number 64B will be on your left after about 200 meters.
Public transport alternative 2 bus: Bus number 42 departing from Tjuvholmen to Bogstad Camping where you get off. (Stops at Lysaker Bro near Lysaker station for those who may wish to take the train there and connect.) 15 minutes uphill walk from the bus stop to the house.
Public transport alternative 3 bus: Bus number 46 from Majorstuen to Ryghs Vei stop. 10 minutes flat walk from there, just follow Ryghs vei direction NNW until it reaches NCVv and house will be on your left.

Drivers: Plenty free parking along the street ☺. Go to Røa, and from there follow Sørkedalsveien northbound, turn right into Ankerveien (sign-posted Bogstad Camping), right again as Ankerveien curves, then first left (Nils Collett Vogts vei), right on Aslaug Vaas vei, then second right which brings you back onto NCVv and number 64B will be on your righthand side after about 100m. 

Runners’ trail and walkers’ shortcut. Unlikely that the trial will be bike/stroller friendly in this steep area.  Food will be served, menu depending on weather conditions whether we can eat outside or not.