Suurniemi is one more fortified sector of Mannerheim Line on the Karelian Isthmus. It was such powerfull as the sectors Summajarvi or Summakylä. There are 7 pillboxes of "millionaire" type and this installations are very impressive. They were connected by trenches and covered with obstacles of a barbed wire and 4-row anti-tank obstacles "teeth of a dragon" type. The area is overgrown with thick wood and bush and walking here is not an easy deal.