Kaihunharju is a sharp-featured esker ridge surrounded by waters. It was deposited in a subglacial tunnel stream and crack between ice masses around 11,400-11,300 years ago. The Kaihunharju area is situated in a built-up area and is home to the marked network of paths called the Kaihu trail. There are connections to the Urpola nature centre (Saimaa Geopark visitor centre) and also to the Pursiala pothole. The Kaihu trail is signposted by Saimaa Geopark signs.

The Mikkeli area emerged from underneath the melting continental ice sheet around 11,300 years ago – at that time, the area was dominated by the Yoldia Sea shore, which reached almost 110 meters above sea level (msl). The summit plains of the esker delta to the southern area of Kaihunharju which formed at around the same time is nowadays around 106msl. As the ice sheet receded from the area, the earth’s crust began to undergo uplift, and approximately 10,700 years ago Saimaa underwent isolation in the Mikkeli area and formed an independent lake from its predecessor, the Ancylus lake.

Contents of the big sign on the Kaihu trail (pdf)

Contents of the small signs on the Kaihu trail (pdf)

Route description of the Kaihu trail and instructions for arrival

You can also find more information about the Kaihunharju here


Coordinates: x=514889,900 y=6837833,599 (ETRS-TM35FIN)

The above coordinates are working in GPS-devices and for example in karttapaikka.fi service.

The below coordinates are working in Google maps service, which uses geographic coordinates:

Coordinates: 61.673435676, 27.281276254 (ETRS89 maantieteelliset(~WGS84))


Image: Hannu Rönty


  • Privy
  • Suitable for children
  • Parking
  • Beach