Sandankyo Gorge, Akiota-cho, Hiroshima, 2021
Sandankyo Gorge, Akiota-cho, Hiroshima, 2021 by Katsuaki Watanabe 猿飛と二段滝に向かう渡し舟の乗り場から見た風景（広島県安芸太田町三段峡）
Sandankyo Gorge, Akiota-cho, Hiroshima, 2021
Sandankyo Gorge, Akiota-cho, Hiroshima, 2021 by Katsuaki Watanabe 猿飛と二段滝に向かう渡し舟の乗り場から見た風景（広島県安芸太田町三段峡）
Inubosaki Lighthouse, Choshi-shi, Chiba, 2021
Inubosaki Lighthouse, Choshi-shi, Chiba, 2021 by Katsuaki Watanabe 犬吠埼灯台（千葉県銚子市） Member of #Choshi Geopark 銚子ジオパーク
Inu-Iwa, a dog-shaped rock, Choshi-shi, Chiba, 2021
Inu-Iwa, a dog-shaped rock, Choshi-shi, Chiba, 2021 by Katsuaki Watanabe 犬岩（千葉県銚子市） Member of #Choshi Geopark 銚子ジオパーク
The beach around Inu-Iwa Rock with black iron sand deposits, Choshi-shi, Chiba, 2021
The beach around Inu-Iwa Rock with black iron sand deposits, Choshi-shi, Chiba, 2021 by Katsuaki Watanabe 黒色の砂鉄が堆積する犬岩周辺の砂浜（千葉県銚子市） Member of #Choshi Geopark 銚子ジオパーク
Wind ripples found on the sandy beach around Inu-Iwa Rock, Choshi-shi, Chiba, 2021
Wind ripples found on the sandy beach around Inu-Iwa Rock, Choshi-shi, Chiba, 2021 by Katsuaki Watanabe 犬岩周辺の砂浜に見られる風紋（千葉県銚子市） Member of #Choshi Geopark 銚子ジオパーク
Sandstone at Cape Inubosaki with iron oxide precipitation along fractures, Choshi-shi, Chiba
Sandstone at Cape Inubosaki with iron oxide precipitation along fractures, Choshi-shi, Chiba, 2021 by Katsuaki Watanabe 割れ目に沿って酸化鉄の沈澱が見られる犬吠埼の砂岩（千葉県銚子市） Member of #Choshi Geopark 銚子ジオパーク
Tafoni found in Cape Inubosaki, Choshi-shi, Chiba, 2021
Tafoni found in Cape Inubosaki, Choshi-shi, Chiba, 2021 by Katsuaki Watanabe 犬吠埼の砂岩に発達したタフォニ（千葉県銚子市） Member of #Choshi Geopark 銚子ジオパーク
Cretaceous Shallow Sea Sediments at Cape Inubosaki, Choshi-shi, Chiba, 2021
Cretaceous Shallow Sea Sediments at Cape Inubosaki, Choshi-shi, Chiba, 2021 by Katsuaki Watanabe 犬吠埼の白亜紀浅海堆積物（千葉県銚子市） Member of #Choshi Geopark 銚子ジオパーク
Basaltic volcanic ash layers found on the Arasaki Coast, Miura Peninsula, Kanagawa, 2021
Basaltic volcanic ash layers found on the Arasaki Coast, Miura Peninsula, Kanagawa, 2021 by Katsuaki Watanabe 三浦半島荒崎海岸に見られる玄武岩質の火山灰層（神奈川県横須賀市）