所属城市：天津
最佳旅行时间：1~12月
开放时间：08:00—17:00
用时参考：
景点地址：天津市近郊蓟县下营镇
公交线路：
景点简介：
在盛夏酷暑三伏天，外界气温即使在 37 － 38 度，此谷温度也保持恒定在 16 － 20 度，并且此谷负氧离子含量很高（每立方米中 800 － 1000 个）。负氧离子有清除人体自由基，延缓衰老和解除疲劳的作用，此处被专家誉为 “ 天然氧吧 ” ，深吸一口空气，一定会使您神清气爽。
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