Zhangzhou Cave is located in the north of Lingqi Mountain, Flood Zhuang Village, Luozhuangzi Town, Zhangzhou District, Tianjin. It belongs to the Yumai of Yanshan, the middle and upper Proterozoic strata, 1.8 billion years ago. The cave is warm in winter and cool in summer, and the constant temperature is 18 degrees Celsius for a long time. The landscape is crystal clear, thousands of positions and changes, which can be called Dongtianfudi. After the exploration calculation of the national geological department, the development space can reach million square meters, the largest area in North China. It is the only cave landscape in Tianjin.

Zhangzhou Cave is located in the north of Lingqi Mountain, Flood Zhuang Village, Luozhuangzi Town, Zhangzhou District, Tianjin. It belongs to the Yumai of Yanshan, the middle and upper Proterozoic strata, 1.8 billion years ago. The cave is warm in winter and cool in summer, and the constant temperature is 18 degrees Celsius for a long time. The landscape is crystal clear, thousands of positions and changes, which can be called Dongtianfudi. After the exploration calculation of the national geological department, the development space can reach million square meters, the largest area in North China. It is the only cave landscape in Tianjin.

The cave in Jixian County is not big. You can also see the place where there is a cave in the north, but it is too far away compared to the cave in the south. The stone pillars are relatively small, the place is not big, and the landscape is average.

蓟州溶洞，坐落在天津市蓟州区罗庄子镇洪水庄村北灵气山。属燕山余脉，中上元古界地层，距今18亿年。洞内冬暖夏凉，长年恒温18摄氏度，其景观晶莹剔透，千姿百态，变化万千，称得上是洞天福地。经请国家地质部门勘探测算，可开发空间达百万平方米，面积之大居华北之首。是天津市唯一的洞穴景观。

蓟州溶洞，坐落在天津市蓟州区罗庄子镇洪水庄村北灵气山。属燕山余脉，中上元古界地层，距今18亿年。洞内冬暖夏凉，长年恒温18摄氏度，其景观晶莹剔透，千姿百态，变化万千，称得上是洞天福地。经请国家地质部门勘探测算，可开发空间达百万平方米，面积之大居华北之首。是天津市唯一的洞穴景观。

蓟州溶洞，坐落在天津市蓟州区罗庄子镇洪水庄村北灵气山。属燕山余脉，中上元古界地层，距今18亿年。洞内冬暖夏凉，长年恒温18摄氏度，其景观晶莹剔透，千姿百态，变化万千，称得上是洞天福地。经请国家地质部门勘探测算，可开发空间达百万平方米，面积之大居华北之首。是天津市唯一的洞穴景观。