view landscape beautiful natural scenery surrounded mountain green forest and asphalted road on crest reservoirs of sai thong

attraction beautiful concrete creek dam destination dike environment famous forest green holiday idyllic irrigation journey jungle khao lake landmark landscape mountain nakhon nakhonnayok natural nature nayok park phra plant pond popular recreation reservoir river road sai saithong scene scenery scenic sightseeing street thai thailand thong tourism tourist travel trip unseen vacation water weir