It is sorupkathi upozila,Barisal. Sorupkathi upozila far from Barisal 22 km. if you want go there, you have to choice motor byc or laguna from chumatha. 
You have to sit only 45 minutes. when you are reached atghar then you have to take auto byc for kuriyana , after 7-10 minutes latter you reached there. Then you have to take a boat for another journey. When you start your journey then you can see little river guava garden and many others tress. It is very amazing place i think you should to go there.