Imo Bog (Imo Shitsugen) | Toyohashi City | Aichi Prefecture | Official Site | Sightseeing Information | Directions | Parking | Details | AichiNow-OFFICIAL SITE FOR TOURISM AICHI

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Toyohashi-City Imo Bog (Imo Shitsugen)

  • Imo Bog (Imo Shitsugen)
  • Imo Bog (Imo Shitsugen)

This is a bog that is located at the west side of the Yumihari mountains and is called the "Mini Oze of Tokai Region". A legend says the gray horse of Yoritomo Minamoto was buried here. The park is part of the Toyohashi Nature Trail and is a perfect site for walking amidst incredible natural settings.

Many rare plants and plants peculiar to the Mikawa region grow there. Shiratamahoshikusa, a kind of pipewort that has pure white cute flowers, Mikawabaikeiso, a kind of false hellebore and Mikawashinjugaya, a kind of nut-rush that are named after this region bloom in each of four seasons. A lot of insectivorous plants also grow in the bog due to its acid soil. A variety of insects including butterflies, amphibians, birds, mammals and land snails that are rare in Japan are found in this bog. Observation tours for the public are conducted in spring and autumn. Research by specialists is carried out in summer and winter. The bog was designated as a natural monument of Aichi Prefecture in 1992.


  • Parking
Location : 〒440-0022
Nagao, Iwasaki-cho, Toyohashi-City, Aichi Prefecture, Japan
Fee : Free of charge
days / hours
: Always open
Parking : Available
Holidays : Never closes
Phone number : 0532-51-2650 (Toyohashi City - Department of Parks and Greens)
Cautionary Notes : When visiting, do not get off from the wooden walkway trail path under any circumstance, and do not support tripods or other objects directly on the marshes, as unfortunately footprints and other markings on the bog take a considerable time until they finally disappear. Pets are prohibited to enter the bog.
In order to preserve both the flora and fauna of the place, do not under any circumstance take away samples of vegetation or living insects/animals. The same restriction applies for bringing foreign plants/animals/insects with purposes of releasing them at the bog.

Note: This page may not be current due to update time differences between site databases.
Should accuracy be critical, please verify this information using a direct source, whenever possible.


  • Access by public transport
    Access by public transport
    From Toyohashi Station, take the Toyotetsu Bus Imura-Iwasaki Line (Line numbers 50, 61, 62, or 63) and get off at Iwasaki-Imo Shitsugen. Walk 12min (800m) southeastwards.
  • Access by car
    Access by car
    Approx. 30min southwards from Toyokawa I.C. of the Tomei Expressway via routes 151, 362, and 31.

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#Imo Bog
#Imo Shitsugen
#Mini Oze of Tokai


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