woman with backpack taking photos in a cave

woman explorer speleologist torch headtorch naturalist anthropologist cave limestone mountain underground inside ancient speleology geologic dark mineral tunnel cavern geology nature hole old stone wall rough darkness corridor view mysterious rock formation prehistoric exploration speleotheme drip boulders shapes earth fossil jurassic flowstone speleogens moonmilk mondmilch backpack taking head exploring caving adventure person stalagmite wadi canyon clothing climbing recreation sports stalactite terrain