Mo'unu Atoll, Pacific Ocean (KINGDOM OF TONGA)

 

Neumayer Science Station, Southern Atlantic Ocean, Antarctic (GERMANY)

 

Signy Island, South Orkney Islands, Atlantic Ocean, British Antarctic Territory (BAAT)

 

**NEW** Orrs Island, Atlantic Ocean, Maine (UNITED STATES OF AMERICA)

 

Melbourne Volcano, Victoria Land, Jointly Stationed/Shared by New Zealand and USA (ANTARCTIC)

 

IRELAND (Republic Of), Eire, Atlantic Ocean (REPUBLIC OF IRELAND) **UPDATED 27 November 2024**

 

Ross Dependency Southern Ocean, Antarctic Territory (NEW ZEALAND) ** UPDATED 24 May 2024**

 

Block Island, Rhode Island, Atlantic Ocean (UNITED STATES OF AMERICA)

 

Omijima Island, Sea of Japan (JAPAN)

 

Anguilla Island, Caribbean Sea, West Indies (ANGUILLA) (BRITISH OVERSEAS TERRITORY)

 

Zavicon Island, One Thousand Island Archipelago, St Lawrence River, Ontario (CANADA)

 

Yeongdo Island, Pacific Ocean (SOUTH KOREA)

 

Unidentified Island, Pacific Ocean (SOUTH KOREA)

 

Star Island, Isles of Shoals, Atlantic Ocean, New Hampshire (UNITED STATES OF AMERICA)