Take the red metro line
M2
from "Déli" station to "Blaha Lujza tér" station (6 stops).
Costs one ticket (140 Ft, 0.5 Euro).
Go up to the surface and take a
yellow tram no. 4 or 6
You have to choose the
Buda/Danube direction ("Boráros tér felé"). Costs yet another ticket.
Immediately after crossing the Danube ("Duna") trough the Petofi Bridge
(Petőfi Hid) you have to take off. The stop is called "Petőfi Híd Budai
Hídfő". On your left (south) you can see a
new building with an observatory
on the top. You have to go there through the park.