A Walk not to - no in - but around the park

I was told there was a nice park a couple of blocks from the house so decided after daily chores (work, apply for jobs and prepare for the arrival of all the Sweden stuff), I go over there. However, I could not find the entrance so ended up with a walk around the park instead. Then I got lost but thought I knew roughly how to get back. Unfortunately all the streets are intersected by avenues that goes diagonally across the numbered roads (and alphabet streets downtown). I had borrowed Alastair's GPS so I could keep a track of where I had been and if I learn how to use it properly I can add where I started so that I find my way back. This is where I went: