Is a permit needed for a large gathering?

I don't think you need a permit fir large gathering s

No. I don't think so.

Depending on how large. Generally - no.

There are large permanent structures that would keep about 50 people content. With bbqs.

There is no area specific to service a large gathering; no covered area with multiple tables and benches like other parks. I've seen large gatherings here with rented tables and chairs.

You should call the City of Orange Parks Department