日本、台灣、韓國、菲律賓、越南、香港、美國、法國、德國、馬來西亞、泰國、阿拉伯、柬埔寨、中國、澳門、賽普勒斯、新加坡、朝鮮、澳洲 ” The Cave is easily warm with moderate humidity, and a small muddy stream flows as a result of it. Though specialised tools isn’t required, it’s sensible to convey protecting equipment to avoid soil and guano staining plus a trusty flashlight for navigation... https://rg8888.org/