stainless steel staircase in the cave. stainless steel staircase to goa bangkang prabu cave, a bat cave on lombok island,

architecture bar bright building cave cement chrome climb climbing concrete construction dark fence footpath going hard height iron lasting lights material metal multi new nobody objects outdoor park protection rail railing rock safety shining shiny stainless stair staircase stairs stairway stairwell steel step stone straight street structure suwan tham tubular