Hey Serhan- I live in Holiday Island, AR and can help you out with your question. Troy is correct about the rain not "ruining" your ability to ride in this part of Arkansas. Actually, unless we get TOO much rain (flooding) the rain usually makes the riding conditions better for the most part. If you're planning on coming down pretty soon, the conditions should be pretty good although it can dry out really fast on the open gravel that sees sunshine. The creek crossings and low water bridges can be very slick if the conditions are right, so definitely heed Hank's warning on that.
There's tons of good riding in the area. I spend quite a bit of time in the White Rock area around the Mill Creek OHV riding area since I am a member of the Razorback Riders and our club's property is located there. A lot of the trails and roads in the area have been deteriorating at a pretty rapid pace lately between the rain we've gotten and increased traffic due to tourism. The UTVs have really invaded the area and I think it's a big reason that the trails keep getting more and more difficult. I'll give you my standard warning about riding big bikes (or any bikes, for that matter) in Arkansas- if you're not familiar with the terrain. It is VERY easy to get in way over your head on some of this terrain if you decide to just go exploring and "see where that trail goes". That is the way I like to ride and to be honest is the main reason that I sold my 990 Adventure when I moved here. A big heavy bike can be a dangerous thing in this area!
The best advice I can give is to ease into it and try to stay on more main gravel roads and see how that goes. If you get bored and want to get a little more "gnarly", Fly Gap Road is a good "feeler" road for more gnarly terrain. It is between Mill Creek Road and highway 23 and although it is officially a road, it has become more like a trail in the recent years. Many people, especially on big bikes, have gotten into trouble on it and if that happens, you definitely don't want to try anything harder that is a trail or even more difficult road.
Hopefully that answers your questions. Let me know if you have anything else you need to know and I'll try to answer it as best I can.
77 XR 75 * 15 KTM 300 XC-W * 14 Suzuki DR 650 * 14 Suzuki DR-Z 400