We're planning a trip to Destin at the end of this month and I'm considering a 1/2 day trip to Grayton Beach State Park. We're only in the area for 3 1/2 days so wondering if it's worth the time with everything else there is to do in the area. My boys want to do some fishing so this might be the place to do that. Would we need a fishing license for just a few hours? Is the fishing in the lake or in the gulf? Any thoughts or advice would be appreciated.