Since April regular guided Tours have taken curious visitors into the vast World war II structure to see the turret interiors and the effect of two failed attempts to blow it up after the war.
从四月份开始，导游团经常将好奇的游客带往这个巨大的二战建筑物，参观炮楼的内部结构和战后两次想要炸毁它却没有成功的尝试给炮楼带来的影响。
Adventurous visitors can opt for several "off-trail" Tours guided by park rangers through narrow passage ways, across slick flow stone and down ropes and ladders.
爱探险游的客可以选择几条“离步道”路线，由公园管理员带领下通过狭窄的入口，借用绳索和梯子穿过光滑流石到达溶洞。拍摄于2010年12月18日。
Adventurous visitors can opt for several "off-trail" Tours guided by park rangers through narrow passage ways, across slick flow stone and down ropes and ladders.
爱探险游的客可以选择几条“离步道”路线，由公园管理员带领下通过狭窄的入口，借用绳索和梯子穿过光滑流石到达溶洞。拍摄于2010年12月18日。
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