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）
Volcanic ash layers and a sea cave on the Arasaki Coast, Miura Peninsula, Yokosuka-shi, Kanagawa, 2021
Volcanic ash layers and a sea cave on the Arasaki Coast, Miura Peninsula, Yokosuka-shi, Kanagawa, 2021 by Katsuaki Watanabe 三浦半島荒崎海岸の火山灰層と海食洞（神奈川県横須賀市）
Byobugaura Sea Cliff, Choshi-shi, Chiba, 2021
Byobugaura Sea Cliff, Choshi-shi, Chiba, 2021 by Katsuaki Watanabe 屏風ヶ浦の海食崖（千葉県銚子市） Member of #Choshi Geopark 銚子ジオパーク
Byobugaura Sea Cliff, Choshi-shi, Chiba, 2021
Byobugaura Sea Cliff, Choshi-shi, Chiba, 2021 by Katsuaki Watanabe 屏風ヶ浦の海食崖（千葉県銚子市） Member of #Choshi Geopark 銚子ジオパーク
Volcanic ash layers on the Arasaki Coast, Miura Peninsula, Yokosuka-shi, Kanagawa, 2021
Volcanic ash layers on the Arasaki Coast, Miura Peninsula, Yokosuka-shi, Kanagawa, 2021 by Katsuaki Watanabe 三浦半島荒崎海岸の火山灰層（神奈川県横須賀市）
Volcanic ash layers on the Arasaki Coast, Miura Peninsula, Yokosuka-shi, Kanagawa, 2021
Volcanic ash layers on the Arasaki Coast, Miura Peninsula, Yokosuka-shi, Kanagawa, 2021 by Katsuaki Watanabe 三浦半島荒崎海岸の火山灰層（神奈川県横須賀市）