great place to spend the night before getting on the boat to Stockholm early in the morning.

good large parking lot to spend the night. from here you can cycle to the center via separate bicycle paths. No facilities, but a beach with picnic tables

Great parking on the island Ruissalo in Turku. No service available. Only a small trash can at the bus stop. Very good hiking and biking opportunities along the coast. Beach really nice. A lot going on at the weekend. As the mentioned possibilities are also gladly used by the locals.