The stables were located on Belle Isle and there was a precinct building there also. That's where my grandfather was stationed. In the late 50's I'd spend the summers with my dad and grandparents and one day each summer my grandmother and I would take the bus to Belle Isle and we'd spend the day with my grandfather.
He would always take us on a ride around the island in the police car then he'd take us over to the stables and the guys would take me for a ride on one of the mounted horses.
Then grandma and I would go on the pony rides and stuff then towards the end of the day grandpa would take us over to the harbormaster and the guys would always take us out for a boat ride on the river.......Those were great days.
Also famous for watching submarine races....:O) Belle Isle was a great park with an arboretum and small zoo. As a teen I loved to go through the arboretum, they had beautiful orchids and a waterfall in one of the rooms..