Poster for Mysterious Islands

National Geographic 2024 - 2 seasons 14 eps Returning series

Mysterious Islands

2024 - 2 seasons 14 eps

6.5

Season 2

No results found

Season 1

Season 2

45 min

S2 · E1 · Aug 13, 2026

North Sentinel: The Forbidden Island Episode 1

On a Polish island, a wood-carved face may have ancient spiritual significance. In the Bahamas, discoveries from a sunken treasure ship reveal the cause of the disaster. At San Teodoro Cave, evidence shows humans reached a nearby island later than expected, and North Sentinel Island remains isolated and fiercely protected from the modern world.

44 min

S2 · E2 · Aug 13, 2026

Floating Eye Island Episode 2

Off Ireland’s coast, maps marked the phantom island Hy-Brasil for centuries, but was it lost or an illusion? In Argentina, a perfectly circular island called “The Eye” rotates within a ring-shaped lake. In Madagascar, the vast cliffside complex of Teniky hints at a lost past. On Pantelleria, hidden Roman coins capture a moment frozen in time

46 min

S2 · E3 · Aug 17, 2026

Island of the Emperor's Tomb Episode 3

In Budapest, beneath the ruins of a medieval monastery on Margaret Island, archaeologists uncover the victim of a medieval killing — his identity lost, and his death shrouded in secrecy — but what led to this violent end? In Italy’s Venetian Lagoon, the shifting sandbar Bacan has suddenly stabilized, defying its natural cycle and raising new questions about the forces reshaping it. On Denmark’s Als, a buried boat surrounded by weapons hints at a forgotten conflict. Was it lost in battle or offered in ritual? And on Ethiopia’s Daga Island, mummified emperors lie hidden within a monastery, their presence tied to power, faith and enduring legend.

45 min

S2 · E4 · Sep 14, 2026

Ireland’s Lost Fortress Island Episode 4

The ruins of a mysterious castle on a New York island reveal a hidden arsenal tied to one of America’s largest weapons empires.

4 episodes in Season 2

Some details come from TheTVDB.

Mysterious Islands takes viewers on an unforgettable adventure to explore the most enigmatic islands on the planet. Weaving together CGI, archival footage, and expert testimony—and with up to four incredible stories per one-hour episode—it's a wild ride as these incredible outposts gradually reveal their secrets

Documentary Reality Mystery

Where to watch

Hulu

Stream

fuboTV

Stream

YouTube TV

Stream

Spectrum On Demand

Free

National Geographic

Free with ads

Amazon Video

Buy

Your rating

Your review

Cast

1 person

Martin Yap

Self - Narrator (voice)

Also in

Animal Empires

Total runtime 9h 34m · Episode length 41 min · Type Documentary

Show info

Premiered

October 24, 2024

Latest episode

September 14, 2026

Status

Returning series

Network

National Geographic

Country

Canada · United States

Type

Documentary

Episode length

41 min

Total runtime

9h 34m

Original language

English

Production

S

Shark Teeth Films

Production

Canada

Produced in

Languages

Spoken on screen

English

If you liked Mysterious Islands

Picks that share its genres, themes, cast and crew.

Hoff Roading

TV · 2025

Worlds Apart

TV · 2025

Extraordinary Escapes with Sandi Toksvig

TV · 2021

Tony Shalhoub Breaking Bread

TV · 2025

History's Greatest Mysteries

TV · 2020

Files of the Unexplained

TV · 2024

Some details come from TheTVDB.

You're offline

Recently viewed pages still work. Your changes save locally and sync when you're back.

Back online · syncing