The cache is not at the posted cords but you should be able to see the top of the building in the picture. Enjoy looking around Battlefield Park. I'm sure it won't take long to find your reference point.
There is no need to climb any tree to get this cache
You will need to reach up a long way though.
In order to find this cache you will need to go to where this picture was taken and project a waypoint at 265 meters 234 degrees true north