do they still have the free hammocks to swing in or is it only the section you have to reserve ahead of time ?

Free ones as well, but its usually pretty busy so finding one may be difficult

When we go later, we usually find one empty, or you can share with others if they are friendly.

Free but you have to wait because there's anyways somebody on one

No they are free

Yes they do!

Yes, but they go fast

They do still have free ones but they are always extremely busy. Best to get there early and keep your fingers crossed.

Yup still free. You just have to be fast.

The hammocks are free, though always taken. Keep an eye out for people leaving if you want one.