Things to do
In addition to nice seashore views and natural park surrounding Haikko Manor you can visit Porvoo - nice old town with a dense medieval street pattern of predominantly wooden houses from the 17th and 18th centuries.
Visiting Porvoo
Porvoo is a historical place with narrow streets and old wooden houses which is lovely to see especially in summer time;)
More about things to do in Porvoo
There is a bus stop 9 minutes away from the Hotel Haikko Manor & Spa, and the bus #2 trip from Haikko to Porvoo takes just about 15 minutes.
You can check timetable either in Googlemaps or here