Iony Island

Island Remote Okhotsk Sea island with steep cliffs

Iony Island, off Khabarovsk Krai in the Sea of Okhotsk, is a remote rocky islet known for seabird colonies and offshore marine life. Visitors reach it only via expedition vessels, drawn by wildlife observation and stark coastal scenery.

Main image

Iony Island is a solitary, uninhabited island in the Sea of Okhotsk off the coast of Khabarovsk Krai, Russia. It is small, rocky and remote with no permanent settlement.

The island is chiefly of interest for navigation, natural history and occasional scientific visits rather than tourism. Its shores are steep and landing conditions can be difficult outside narrow weather windows.

Historically the island has been noted on maritime charts and by seafarers crossing the Sea of Okhotsk; there is no record of sustained human habitation. Any human presence has been temporary and related to fishing, surveying or occasional landings.

Geographically it lies in the western part of the Sea of Okhotsk within Russian territorial waters, isolated from major population centers and reached only by sea.

  • Remote location: An isolated, uninhabited island in the northwestern Sea of Okhotsk that serves as a maritime landmark for the surrounding waters.
Iony Island
56.4097, 143.3727

Tips for Visiting Iony Island #

  • Iony Island is extremely remote and uninhabited in the Sea of Okhotsk-access is possible only by expedition vessel, so organize travel with an experienced operator familiar with Khabarovsk Krai logistics and Russian permitting.
  • Expect no visitor services on the island; trips that do land focus on seabirds, marine mammals and rugged coastal scenery, so plan your itinerary around wildlife-viewing windows and flexible weather-dependent landings.

Best Time to Visit Iony Island #

Iony Island is best attempted in the short ice‑free summer months (roughly June-September) when sea access is possible; the rest of the year is generally inaccessible due to sea ice and severe cold.

Ice‑free summer window
June-September · 5-15°C
Sea ice retreats in summer, making boat access possible; weather is cool and often changeable-this is the realistic window for visits to this remote island.
Sea‑ice and winter
October-May · -20-0°C
Sea ice and severe winter weather make access unsafe or impossible for most vessels; the island is effectively inaccessible except to specialized polar operations.

Weather & Climate near Iony Island #

Climate
Temperature & Rainfall
Temperature Range
18°
Warmest Month
-25°
Coldest Month
Monthly Conditions

January

Weather

0.0
UV Index
Low
7.4h daylight

February

Weather

0.1
UV Index
Low
9.3h daylight

March

Weather

0.4
UV Index
Low
11.7h daylight

April

Weather

0.8
UV Index
Moderate
14.0h daylight

May

Weather

0.9
UV Index
Moderate
16.2h daylight

June

Weather

1.2
UV Index
High
17.3h daylight

July

Weather

1.2
UV Index
High
16.8h daylight

August

Weather

0.9
UV Index
Moderate
14.9h daylight

September

Weather

0.5
UV Index
Moderate
12.6h daylight

October

Weather

0.2
UV Index
Low
10.2h daylight

November

Weather

0.0
UV Index
Low
8.0h daylight

December

Weather

0.0
UV Index
Low
6.7h daylight

Nearby Attractions to Iony Island