I would like to throw my son's birthday party, is there a reservation fee or is it on a first come, first serve type of thing? I saw some pictures and one had a jumper would I also need a permit for that or how would birthday parties work here?

People gathering less than 40 people is allowed without any fee/reservation. The gazebos can be used for parties on first come first serve way. We can put up the decorations but need to clean the area before we leave.

Small groups can use the park without a permit.

If the gather less than 40 people, its ok you don't need any pay , also first com first serve