A small mud-volcano site near Lesnoye — Sakhalin's fourth mud-volcanism centre, first noted in 1986.

Region: Sakhalin OblastCoordinates: 46°54′N 143°5′E

Lesnovsky Mud Volcano

Lesnovsky mud volcano lies near Lesnoye, Korsakovsky district, ~3 km from the Okhotsk shore in a tributary of the Ochepukha River. Several shallow salses ~5 m across. The 10 June 1986 eruption was studied by Sakhalin geologists; activity has since declined. Sakhalin has three major active mud-volcano centres; Lesnovsky is a fourth, now considered inactive. For geology buffs and quiet forest coast — pairs with Lake Izmenchivoye and Lesnoye, not standard tours.

How to get there

From Korsakov or Lesnoye via forest road toward Ochepukha tributary; final section on foot.

Best season

June–September for forest hiking

Travel tips & stories

  • Active gryphons may be absent — do not disturb solidified mud.

  • Many midges in the hollow — repellent and long clothes.

  • Weak forest landmarks — save GPS track.

  • Not the Yuzhno-Sakhalinsk mud volcano — a different site.

  • Follow forest rules — no fires outside designated spots.

mud volcanoKorsakovgeologyforest

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