Take the bus or Arlanda Express to the City Center. Take the Roslagsbanan that goes from Östra Station, (it takes around 20 min) to Näsby Park. Get off at Näsby allé. Go straight ahead and pass the gates to the castle. Walk around 200 m and follow the sign to the reception. Travelling time 1 hours and 20 minutes.
Travelling time 30 minutes.
Drive towards E4 south to Stockholm. Take the exit to Häggvik/Täby and follow the road 265/Norrortsleden all the way t0 E18. Drive on E18 towards Stockholm untill you see the exit Roslags Näsby. Turn right to Näsby Park. Take the second exit to the right to Näsby Allé. Continue untill you crossed the railway, straight ahead you will see a sign that says “Näsby Slott”.The parking is on the left hand side, directly after Friskis & Svettis. See the parking for 100 parking lots.
Around 30 minutes. Taxi Stockholm cost around 490 kr.