Pretty sure this is the satellite bus barn under construction in the North Industrial.
Did you know Kinsmen Park is Saskatoon's first park (1903) and on some occasions served as the exhibition grounds
I was mistaken about the lake/canal, pond/stream is a better description of those water features. The combination would have made the park much more interesting (fountains, waterfalls/weir, habitat for waterfowl?), not to mention the potential for ice skating during the winter months.
And check out the 1980 plan and consideration of an outdoor amphitheatre. River Landing has one, well Phase I is not really an amphitheatre. Phase II on the other hand will have a performance platform, and seating built into the riverbank abutting Idylwyld Drive (IIRC).
They incorporated a mini-golf course in the 1991 preliminary plan. Reading up on the feedback from the public gives me the sense that people didn't want it in the park (because it would mean more people using the park, it would cost money for upkeep...etc).
I visit Kinsmen Park here and there during the summer months and with exception to the rides and playground area(s), a large part of the park (northern) is not well suited for active uses due to the topography (land slopes into a gully). The solution for this underutilized space is clear. Develop the pond/steam idea. The rerouting of the train to travel over a bridge that crosses the stream seems like a novel idea as well (I'm cool with just a stream/pond...we can leave the rides at their current location).
Kinsmen Park Development Plan 1980
KP DP 1985
KP DP - Site Characteristics
Preliminary KP DP May 1991
Preliminary KP DP May 1991
Preliminary KP DP May 1991
KP DP May 1991
KP DP May 1991
KP DP May 1991
KP DP May 1991
Source: City of Saskatoon, Kinsmen Park Development Plan, May 1991.