Smithsonian Magazine on Instagram: "Ryan Deboodt (@rdeboodt) here continuing my week long takeover of @smithsonianmagazine presenting my work in the caves of Phong Nha Ke Bang national park in central Vietnam. There are surprisingly not that many speleothems (formations) in Hang Son Doong due to massive flooding, but when there are they are huge! Take this stalagmite for example. It's nearly 60 meters tall! Sometimes it's difficult to get a sense of scale in these photo so be sure to find the person in the photo!"
541 likes, 5 comments - smithsonianmagazine on June 15, 2015: "Ryan Deboodt (@rdeboodt) here continuing my week long takeover of @smithsonianmagazine …
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