Enping is a county-level city. Enping city is located in the southwest of Guangdong Province, upstream of Tanjiang River. Total area 1698 km2. Total population is 490,000 (2007). The northwest is a hilly area with high terrain. It has a subtropical monsoon climate, with an average annual temperature of 2 1.9℃ and an annual precipitation of 2,348 mm. There are three rivers 13, which pass through Jinjiang in the upper reaches of Tanjiang River. National Highway 325 transits, while provincial highway En (Ping) Gui (Zi) obliquely crosses the city boundary. Aofengshan Tourist Area is listed as one of the scenic spots in Guangdong Province 100, and Qixingkeng has virgin forests. Tourist attractions include Enping coastal mangrove forest, Qixingkeng Nature Reserve (currently the only secondary forest area in the Pearl River Delta), Jinjiang Reservoir, a large reservoir in Guangdong Province, Hepai Forest Farm in Guangdong Forest Park, Qicaikeng, Saihai in Ren Xian, Hedong Celebrity Villa, Shi Cun in Yunli, Zhongshan Park, Aofeng Mountain Scenic Area, Hundred Animals Garden, Xichun Ancient Pagoda Park, Phoenix Ecological Park, clear lake Tourism Resort, Baima Emerald Resort and Tycoon Tourism Resort. The "Eight Scenes of Enping" are: Jade Belt Tianchi, Jiangpai Qingxu, Jiangzhou Rongyin, Xiangshui Longtan, Qiaoyuan Zhaohui, Aofeng Songtao, Shuangqiao Jinxiu and Shishan Minggu. The grotesque cave-mortar glacier remains, in the depths of the mountains in the west of Naji Town, enping city, hide a canyon about 3 kilometers long. There are two magical landscapes in the canyon: on the granite foundation of the canyon, there are hundreds of caves and mortar. Are these caves and mortar the remains of glaciers two or three million years ago? Or the pot hole made by running water 10 thousand years ago? These two magical landscapes are located at the foot of Jiutou Mountain in the west of Naji Town. One is called "flying squirrel sprinkler" and the other is called "cowhide sprinkler", which is about 2 kilometers apart. "Flying squirrel sprinkler" is located in the downstream of Jinjiang tributary, and "cowhide sprinkler" is located in the upstream of Jinjiang tributary. Both riverbeds are granite, with an area of about 150 square meters. Surprisingly, there are hundreds of caves and mortars on the washed white granite basement. These caves and mortar are grotesque, some like round water tanks, some like human footprints, some like ancient rice mortar, and some like cow's hoof prints. The largest hole and mortar diameter is about 1 m, and the smallest hole and mortar diameter is about 10 cm, with different depths. The mouth of the cave mortar is wide or narrow or wide, but the mouth edge and inner wall are smooth, and some of them also contain many pebbles, and many "U"-shaped scratches can be seen on the inclined wall of the rock. According to the investigation of geological data, geologists have two different explanations for these caves. One explanation is that these caves are ice mortars, that is, the remains of glaciers two or three million years ago, which were formed by the rapid flow of stones carried by the melting of glaciers and the long-term strong impact and grinding of rocks vertically from a considerable height. Geologically, it is called "ice mortar". If this statement is true, it proves that Enping was once a world of ice and snow two or three million years ago. Another explanation is the pot hole, which is a deep hole formed by the erosion of ordinary rock riverbed by water flow. It is distributed at the joint intersection or broken place of bedrock in stony riverbed, and the water flow makes it a pothole; The gravel in the pit rotates, collides and erodes the pit wall driven by running water, which makes the pit continuously expand and deepen, forming a deep hole with a depth of tens of centimeters to several meters, which is called "pothole" in geology. In 2005, the enping city Museum organized archaeologists to conduct a general survey of Enping's towers, and found that there were more than 700 towers in Enping's urban and rural areas, of which more than 430 were well preserved. According to the census statistics of archaeologists, there are about 200 watchtowers in Tangjun Town. In order to do a good job in this census, enping city archaeologists spent more than a month visiting almost all the villages in Enping. As soon as they heard about the watchtower, they rushed there, took more than 600 photos and collected a lot of first-hand information. According to research, some of these towers scattered in urban and rural areas were built in the late Qing Dynasty and some in the Republic of China, most of which have a history of more than 80 years and a few have a history of hundreds of years. A watchtower in Tang Long Village, Tangsheng Town was built in the late Qing Dynasty by the first villagers who went abroad to make a living and made a fortune. The architectural structure and modeling design of various watchtowers are varied, with their own characteristics and colorful. Some are concrete, some are blue bricks, and some are red-haired steel bars. Most of them are four stories high, some are as high as six stories, and the wall thickness is nearly 1 m. The doors and windows are narrow, the roof is set with a watchtower, and the four corners of the wall protrude. These towers have three functions. The first is to prevent thieves. In order to resist bandits, village collectives or individuals paid money to build towers, and some overseas Chinese and compatriots from Hong Kong and Macao donated money to help. The second is waterproof. Whenever the flood surges, the villagers climb to the top of the building to avoid the flood and disaster. The third is to fight against Japanese aggression. During the period of War of Resistance against Japanese Aggression, the anti-Japanese soldiers and villagers United and stayed at the watchtower to severely crack down on Japanese robbers who burned and looted villages and protect their homes. Diaolou is the witness of Enping overseas Chinese history, revolutionary history and folk customs, which has important research value in history and architectural art, and is also a colorful local cultural landscape. There is a solid tower in the former residence of Wu Youheng in Husha Town, which provided convenience for revolutionary comrades such as Wu Youheng to engage in revolutionary activities. Tang's watchtower in town was built with money donated by his grandfather. It records the hard footprints of overseas Chinese in a foreign land and reveals the noble character of overseas Chinese who love their country and their hometown. It has become a rich and valuable cultural heritage left by the previous generation of overseas Chinese to Enping people.