Whale mounds
Mounds are created to remember Cetacean stranding, a type of whale that was hunted for food and resources, and to show appreciation for the area being saved and enriched. Whales were considered gods and some were called Ebisu, so they were enshrined to prevent them from becoming angry gods after they died on the shore or were hunted. The mound is also built to prevent the god from becoming angry. These mounds can be found at Toda Shrine in Shinagawa, Tokyo and Whale Shrine in Miyake-jima, Tokyo.