Do you need a fishing license in the park? And can you rent or ride horse's there?

From what I understand it's a state park don't need a fishing license to fish there

Anywhere you fish you must have a license, so yes. And yes you can rent a horse.

Yes sure can

From what ive read all texas State park you do not need a fishing license but will abide by all rules and regulatioms and size limits not sure about horses .