Gyms on the map: over 3100 fitness centres in Finland, from chains to municipal halls, by municipality. Free, no login and no paywall.
3 122 places in
The map shows 106 gyms in Turku. This is the number of places in this service, not an official total for the municipality.
104 places have parking within 500 metres (typically 50 m) and 105 places have a bus stop nearby (typically 100 m). Distances are measured to the nearest parking area and bus stop marked on the map.
Cygnaeuksen koulu is right in the city centre. The farthest is about 17 km away.
Ilpoisten palloiluhalli, Samppalinnan palloiluhalli, Luolavuoren koulu, Piiparinpolun yksikkö, Luostarivuoren koulu, Martin yksikkö. These have their own description, a photo or a Wikipedia article, so the place page offers background beyond the location alone.
On the place's own page. 97 places in Turku have a link to their own website and 56 have a phone number. The most up-to-date information is always on the place's own site.