The best time to see Firefly Squid, Toyama Bay in 2027 is March to early May 2027.
Timing status: Natural timing window.
Bioluminescence · March to early May 2027
Annual · spawning glow
Millions of thumb-sized squid rise to spawn, glowing electric blue in the dark bay.
Each spring, firefly squid rise from the deep to spawn in Toyama Bay, their bodies flickering with bioluminescent blue light. Pre-dawn boat tours drift over the glowing swarms, and on the right night, waves can wash the tiny squid ashore in a luminous blue tide.
bioluminescent waves at night: Electric blue
Where it is visible: Toyama Bay, Japan
Boat tours run March to May; the shoreline glow depends on wind and waves.
Firefly Squid, Toyama Bay 2027: March to early May 2027.
Trailwind finds the moment a trip is unusually possible: the right season, a cheap fare, your open dates, and rare skies. Browse by calendar: