The meeting point at Malmi, Malmi Airport.
From the Ring I, take the "Pihlajamäki/Rönnbacka" exit. Follow the signs to "Malmin lentoasema". You can leave your car at the airports P-lot.
Check the YTV journey planner for more options.
The meeting point in Turku is Tuomiokirkontori (the Cethedral square). Elsewhere meeting upon separate agreement.