← Back to Directory

Yassie of Lake Yamanaka

Yassie of Lake Yamanaka

Field Report

Yassie is a lake monster reported in Lake Yamanaka, Japan, described as a large, serpentine creature occasionally seen surfacing in the water. It is part of a series of Japanese lake monster legends akin to the Loch Ness Monster. Despite limited evidence, Yassie remains a local folklore figure, symbolizing the mystery and depth of Japan’s natural lakes.

Classification

Type:Lake Monster

Location:Japan, Yamanashi Prefecture, Lake Yamanaka

Traits:Smooth-backed, dark body, looping movements, elusive surfacing

Threat Assessment

Danger Level: 4.5

First Reported: 1900s

Sightings: 2

Reveal Full Dossier

Behavioral Patterns

It rolls gently under placid water, breaking the surface in smooth arcs. When paddles strike nearby, it sinks without fuss.

Folklore & Origins

Japanese villagers thought this lake beast was a water kami angered by overfishing.

Media Documentation

Mentioned in local Japanese lake tourism brochures and cryptid enthusiast blogs. No mainstream media or environmental studies give it serious coverage.

Hoax Analysis

Yassie of Lake Yamanaka has few reports and no verified hoaxes. Sightings are mostly anecdotal and lack evidence of fabrication.