Yes, a fishing excursion may be reserved right at the resort. Just contact the recreation staff or stop at the rec window at the pool.
We've done a fishing trip for a number of years now and it is a lot of fun. Cost is $450 for up to 6 people. Bait and tackle are provided. They stay in the sound - so this is not deep-sea. We've caught abotu 6 different kinds of sharks, mackerel, cobia, redifsh, jacque and even some rays.
You can also just fish off the pier. The resort also offers crabbing and they have nets for purchase. There a a number of water related activities including nature hikes, shelling, bird wactching and kayaking as well as Dolphin tours - all right from the resort. There are also similar services offered at the Shelter Cove Marina - right across from the resort.