Holocene-aged karstified clastic limestone in the form of calcarenite that can still be observed in the presence of benthic foraminifera fossils and other bioclasts embedded in carbonate mudstone. Evidence of the karstification process is the presence of lapidary structures developed in this rock.
Limestone hills hills that are directly adjacent with coastal morphology with a range of heights reaching more than 100 m in height. This This illustrates the process of uplift during the Quaternary time. Furthermore, morphology was also observed reef lagoon morphology on the beach area.