Looking up through the cave entrance presented a stunningly clear vision, up through the aquifer, even further into the trees surrounding the spring. An enormous amount of pristine spring water pours through this entrance every minute, creating an icy gateway into the depths below the bottom.
Canon G15, Nauticam NAG15, Inon s2000 (x2), Sola Photo 800, Inon UWL-S100 ZM80
1/125 sec, f/4, ISO800