If you just arrived at the airport and from there you're travelling by car, you need to go towards Fundata, Brasov.
One you got in Fundata you will see and indicator for the village " Sirnea" on the right side of the road if you're coming from Bran and on the left side if you are coming from Campulung. From there just follow the road into the valley 1 km and take the first right. After going 200m more you will see the guest house on the left. You can't miss it because it is the only building in that area.

If you are travelling by train then you will need to get to Brasov train station. From here you will need to go to Rasnov which is a 30 min journey. In Rasnov you will find a car from the quest house ready to take you there.

If you are traveling via bus, you need to get to Brasov and from the bus station there take the bus to Fundata (1 hour journey). At the bus station in Fundata there will be a car ready to take you to the guest house.