Palmerston Island, Cook Islands

A remote atoll where almost everyone descends from one man

A tiny, isolated coral atoll in the Cook Islands whose entire community of around 35 people descends from a single Englishman, William Marsters, who settled here in 1863 with three Polynesian wives. English is spoken with a peculiar accent traced back to his 19th-century speech.

William Marsters, a ship's carpenter from Gloucestershire, arrived in 1863 and raised a large family that he divided into three branches, each with rights to a share of the atoll. His descendants — now spread worldwide but still resident here — govern the island by family council.

Frequently asked — Palmerston Island

When is the best time to visit Palmerston Island?

Best May–Sep (drier) · Cyclone risk Nov–Apr — this reflects Cook Islands's seasonal weather and crowds.

Do I need a visa to visit Cook Islands?

Visa-free (31 days, most passports). Entry rules depend on your nationality and change often — always confirm with the official Cook Islands government or embassy before you travel.

What currency is used in Palmerston Island?

New Zealand Dollar (NZD). You can convert USD to the live local rate right on this page.

What language do people speak in Palmerston Island?

English is the primary language in Cook Islands.

What is the emergency number in Cook Islands?

Dial 999 for emergencies in Cook Islands.

Can you drink the tap water in Palmerston Island?

Tap water here is generally rated "Tap safe". When unsure, choose sealed bottled or filtered water.

What power plug type does Cook Islands use?

Type I. Bring a compatible adapter — you can build a full packing list for Palmerston Island on this page.

Is Palmerston Island safe for travellers?

Safety varies by neighbourhood and changes over time, so there's no one-word answer. The local emergency number is 999. Check SkyOSK's safety notes for Palmerston Island and your government's current travel advisory before you go.