Most people come to the 30a area for the beach. Understandably! What so many don't realize is the diverse area that is around this beautiful beach. There are many State Parks that you can hike. Choctawhatchee Bay is another jewel. It is ever-changing just like the beach. One minute it will be smooth as glass, then become rough and choppy when the wind picks up. I love to go out in the boat on days like this. I have never been out in the boat, that I do not see dolphin and rays. They are everywhere. There are good charters that go out into the Bay for fishing. You can catch Red Fish and Trout. This is a great option for people in your party that tend to get sea sick. It's also a great option for taking kids. The Gulf can be unforgiving at times with the sun and the roll of the waves. Fishing the bay can let your kids get a taste of fishing without killing them off with a long boat ride in tough conditions their first few times out. When you finish you can go over to The Bay , the sister restaurant to the Great Southern in Seaside, dock up and walk in and eat. All with a wonderful view! This is also a great alternative during the summer months if Seaside is crazy and you don't want to wait a long time for a table.
There is a new public boat launch under the 331 bridge. It is very nice with outsets for people who don't have a boat and want to fish. I go down there many afternoons for a sunset and people are catching fish from these spots. There is a bait shop just before you get to this ramp on the right in the same parking lot as The Bay restaurant. Bay Baits. They can tell you when to fish, what they are catching fish on, etc...You can find locations to most of the Walton County boat ramps by googling Walton county boat ramps. There are a few handy maps that will pop up.
Or just ask a local.
Get out and explore!