5. The cooling apparatus according to claim 3, wherein the base layer comprising the plurality of openings adapted to allow the airflow through, wherein the base layer is adapted to receive and channel the waterflow to the second evaporative cooler, and a top layer comprising the plurality of overhangs spaced apart from each other and overhanging the plurality of openings, wherein the each of the plurality of overhangs are adapted to receive and channel the waterflow to the base layer. 6. The cooling apparatus according to claim 3, wherein the base layer comprises a plurality of channels spaced apart from each other to form the plurality of openings therebetween, wherein the plurality of channels are adapted to channel the waterflow to the second evaporative cooler, and wherein the plurality of overhangs comprises a plurality of channels. 7. The cooling apparatus according to any one of claims 1 to 6, further comprising a plurality of guides spaced apart from each other and adapted to guide the airflow from the second evaporative cooler to the first evaporative cooler. 8. The cooling apparatus according to any one of claims 1 to 7, wherein the plurality of guides are adapted to guide the airflow from the second evaporative cooler to the deflector. 9. The cooling apparatus according to any one of claims 1 to 8, wherein the first evaporative cooler is disposed above the second evaporative cooler. 10. A cooling method adapted to cool a waterflow, the method comprising, receiving an airflow through a first evaporative cooler from a second evaporative cooler to cool the waterflow through the first evaporative cooler, receiving an airflow through the second evaporative cooler to cool the waterflow from the first evaporative cooler through the second evaporative cooler, deflecting the waterflow from the first evaporative cooler to the first evaporative cooler and allowing the airflow from the second evaporative cooler to the first evaporative cooler by a deflector.