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OpenSSF Community Day Europe brings together the Open Source Security Foundation community in Prague to advance software supply-chain security, secure development practices and open-source security tooling.
The Czech capital in October suits a working conference: sharp air, low sun, and long enough evenings for the open source community to keep talking past the schedule. Events aligned with cloud native gatherings here often sit in the Karlín and Holešovice districts, former industrial quarters east and north of the centre now full of converted halls. Both are two or three tram stops from the old town without being inside it.
Václav Havel Airport (PRG) sits about seventeen kilometres from the centre. The AE Airport Express coach runs directly to Praha hlavní nádraží, the main station, in roughly thirty-five minutes. Metro line B serves Karlín and line C reaches Holešovice, both around ten minutes from the centre. Trams run frequently and a twenty-four-hour ticket is usually better value than singles.
Skip the taxi queue — pre-book a fixed-price airport transfer with Welcome Pickups. Exploring beyond the city? compare rental cars on Auto Europe.
Mobile data is fast and cheap in Czechia, and coverage extends underground. Travellers from outside the EU generally find an eSIM the least troublesome way to get connected on landing. Set up an eSIM with Airalo before you board and you're online the moment you land.
Letná Park and the Metronome. A plateau above the river north of the old town, reached by steps from Čechův most. The giant metronome stands where a Stalin monument once did, and the beer garden below has the best skyline view in Prague. An hour or two, ideally late afternoon when the light falls across the bridges.
National Technical Museum. Aviation, transport, printing, and industrial history filling a large hall in Holešovice, with an unusually strong collection of Czech engineering. Two hours covers it. For an audience of infrastructure engineers it is a more fitting stop than the castle, and it is rarely crowded on weekdays.
Petřín Hill and funicular. A wooded hill on the western bank with an observation tower modelled on the Eiffel Tower. The funicular from Újezd takes a few minutes and accepts standard transit tickets. Allow two hours including the tower climb. The descent on foot through orchards back to Malá Strana is the better direction. Tickets on Tiqets →
Kampa Island and the Museum Kampa. A quiet islet beneath Charles Bridge with a modern art museum focused on Central European work. The riverside lawns are a genuine break from the tourist route above. Ninety minutes covers the museum and a walk along the mill stream, which few visitors bother to find.
What is the fastest route from the airport to the city centre?
The AE Airport Express coach runs directly to the main railway station in about thirty-five minutes, with no changes.
Are cards accepted everywhere?
Broadly yes in Prague, though small pubs may prefer koruna cash. Withdraw from bank ATMs rather than exchange kiosks.
How long are the days in mid-October?
Daylight runs roughly from seven in the morning until six in the evening, so plan outdoor sightseeing before sessions or at lunchtime.
Travel notes written for OpenSSF Community Day Europe 2026 attendees. Links marked above are affiliate links — we may earn a commission at no cost to you. Verify schedules and opening hours on official websites before you travel.
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