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Atlas/asia/Deep field file

Signal verified · updated 2026-09-03

Sumatra

Sixth-largest island in the world (~62 million people); Lake Toba, orangutan rainforests, Minangkabau culture and Aceh's Islamic heritage.

0.000° N102.000° E
site access marine
Kualanamu International Airport (KNO), Medan
Lake Toba and Samosir Island
Mount Kerinci
Bukit Lawang orangutan centre
Formation
Barisan mountain volcanic spine along the west; vast eastern lowland plains, swamps and mangroves
Population
62.3M
Water
Indian Ocean
Access
easy

Every required movement

The passage
to Sumatra.

Fly to Medan (KNO), Padang (PDG) or Palembang (PLM); ASDP ferries cross the Sunda Strait (Merak-Bakauheni); Dumai-Malacca ferries link to Malaysia.

  1. 01
    Kualanamu International Airport (KNO), Medan

    Nearest recorded air access

    Schedule or condition may change · verify
  2. 02
    Water crossing

    ASDP Indonesia Ferry: Merak-Bakauheni (Java-Sumatra); Dumai-Port Klang/Malacca international ferries; Pelni ships from Belawan.

    Schedule or condition may change · verify
  3. 03
    Entry check

    Indonesia visa-exemption/visa-on-arrival for many nationalities.

    Schedule or condition may change · verify

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What the chart cannot hold

What becomes visible when you follow lake toba beyond the familiar map?

A vast, seismically active island straddling the equator, holding some of Earth's most biodiverse rainforests and the supervolcano caldera of Lake Toba.

Srivijaya maritime empire (7th-13th c.) ruled from Palembang; Islam spread first via Samudera Pasai and Aceh; Dutch consolidated control in the 19th century after the Padri and Aceh wars; Japanese occupation 1942-1945; part of Indonesia since 1945; 2004 tsunami devastated Aceh.

Field ledger

The useful
details.

Coordinates
0.00° N · 102.00° E
Sovereignty
Indonesia · part of country
Nearest mainland
Malay Peninsula across the Strait of Malacca (~40 km at the narrowest point)
Best recorded window
May-September (relatively drier).
Permits / entry
Indonesia visa-exemption/visa-on-arrival for many nationalities.
Languages
Indonesian, Minangkabau, Acehnese, Batak languages, Malay, Lampung

Community intelligence

Notes from
the crossing.

Share firsthand conditions, access changes, respectful observations, or a question for someone who has been.

No traveler has left a public note here yet.

The empty ledger is part of the mystery—and an invitation to be useful.

Travel information changes quickly. This field file was last revised 2026-09-03. Confirm all transport and permit details before booking.

Official source