Higashiyoka Tidal Flat

A Ramsar Convention wetland on Ariake Sea — one of Japan's most biodiverse tidal flats, home to 140 species of migratory birds and the spectacle of mudskippers and fiddler crabs at low tide. In autumn, the shichimenso (salicornia) turns the mudflat a vivid red, creating an otherworldly landscape.

Location

Why Visit

• 1

  October is the red season — shichimenso plants covering the flat turn deep crimson simultaneously

• 2

  Mudskippers (mutsugoro) are the local symbol — these fish walk on land and are unique to Ariake Sea

• 3

  The adjacent road runs right along the flat — photograph at sunset when light turns everything golden

Local Tips

The Ariake Sea has Japan's largest tidal range — up to 6 metres — and the exposed mudflat at low tide stretches for kilometres. Mudskippers, horseshoe crabs, and fiddler crabs make the flats feel prehistoric. Arriving at high tide means there's nothing to see — check tides before visiting.