I've been here probably a hundred times, but never thought of reviewing it?!? Anyways, I do enjoying coming to Thunderbird Park. It's a very nice and well maintained park with gradual inclines. I call it a training hike, to set someone to the point where they are hiking other mountains like Camelback.
I actually come up here quite often, probably because I live within a mile, but I find myself doing the peak on the east side of 59th ave. it's only 450ft in night, but it can still get me out of breath. A good 2 mile up and down. If I'm feeling like it I'll also hit the peak on the west side of 59th ave. total with both hikes is about 5-6 miles. A good nice workout. Good views of the west valley and good to come up for a sunset.
Overall the park is real clean and lots of parking. Just make sure you hide your valuables or better yet leave them at home. There had been several reported break ins here in cars looking for purses and backpacks, so be careful. It don't stop me because I don't leave anything in my car so I will continue to hike here.