Former landing craft (Swedish Transportbåt Större TPBS 200-Class) "OCTAVIA AF CALMARE" in the port of Borgholm (Öland, Sweden). Maybe the civilian version of the vessel.
She looks like a tour boat in these times- 25.06.2019

See also:
http://www.shipspotting.com/gallery/photo.php?lid=3042726
http://www.shipspotting.com/gallery/photo.php?lid=3043541

Thanks to David and Alex for identifying the name, the typ and the origin - see comment below:

Former landing craft utility (or civilian version?) - Transportbåt Större (TpbS) in Swedish
https://sv.wikipedia.org/wiki/Transportb%C3%A5t_St%C3%B6rre
http://laurell.today/boats/tpbs200/