A woman holds a parasol as she stands in a field of fireweed, or Kochia scoparia, on a sunny autumn day at the Hitachi Seaside Park in Hitachi, north of Tokyo, October 26, 2015. Fireweed is a grass bush that takes on a bright red colour in autumn. (Photo by Thomas Peter/Reuters)





A couple walk in a field of fireweed, or Kochia scoparia, on a sunny autumn day at the Hitachi Seaside Park in Hitachi, north of Tokyo, October 26, 2015. (Photo by Thomas Peter/Reuters)





A woman walks in a field of fireweed, or Kochia scoparia, on a sunny autumn day at the Hitachi Seaside Park in Hitachi, north of Tokyo, October 26, 2015. (Photo by Thomas Peter/Reuters)





A boy slides through a tube in a cylindrical walkway at the Hitachi Seaside Park in Hitachi north of Tokyo October 26, 2015. (Photo by Thomas Peter/Reuters)





A man walks in a field of fireweed, or Kochia scoparia, on a sunny autumn day at the Hitachi Seaside Park in Hitachi, north of Tokyo, October 26, 2015. (Photo by Thomas Peter/Reuters)





A child runs in a field of fireweed, or Kochia scoparia, on a sunny autumn day at the Hitachi Seaside Park in Hitachi, north of Tokyo, October 26, 2015. (Photo by Thomas Peter/Reuters)





People walk in a field of fireweed, or Kochia scoparia, on a sunny autumn day at the Hitachi Seaside Park in Hitachi, north of Tokyo, October 26, 2015. (Photo by Thomas Peter/Reuters)