It's fascinating to me that I learned for the first time about these strong, fearless, cheerful grandmothers called haenyeo, who in their 60s and 70s still snorkel a few meters and collect seafood to sell, and that's a tradition in South Korea. On the island of Jeji, a craft that has been handed down for generations, but is now dying out due to climate change, ocean pollution, and because the new generations do not want to do it. UNESCO protected this tradition in 2016.
However, although the film is visually wonderful, they failed to elaborate on some very important topics, such as when the government of Japan decided to release radioactive material into the ocean after Fukushima and when a haenyeo representative was invited to the UN to give a speech on what consequences this would have. . We don't really get a full epilogue to it, it's just scratched the surface. In essence, they did release that material into the ocean.