Kurhaus, very easily accessible.
It is very easy to get to Kurhaus.
From Schiphol airport you take the train to the hague. Within 30 minutes
The hague has 2 train stations. Buses and trams go to Kurhaus from both stations within 2 minutes.
They all stop in front of Kurhaus!
2 examples from Schiphol airport, with two different stations in Den Haag.
Website time schedule from Schiphol airport
For example from Schiphol airport to Den Haag v NOI (trainstation)
Another example from Schiphol airport to Den Haag Central station (trainstation)