As of October 2015 the fire tower is open. I did this hike Labor Day weekend 2016 with my 2 1/2 year old and 9 month old. We had a great time, some sections were too steep for my 2 1/2 year old and I had to carry her.
"After the first glass, you see things as you wish they were. After the second, you see things as they are not. Finally, you see things as they really are, which is the most horrible thing in the world."
--Oscar Wilde on Absinthe