Sumatra Travel Guide

Indonesia’s vast, wild western island - a land of steaming rainforest, volcano-ringed crater lakes and orangutan-filled jungle, stretching over 1,700km down the equator, far less touristed than Java or Bali.

Why go / don’t miss: the immense volcanic Lake Toba (the world’s largest crater lake), trekking to wild orangutans at Bukit Lawang, the Gunung Leuser rainforest, the volcanoes and surf, the Minangkabau highlands around Bukittinggi, and the Mentawai islands’ surf and tribes.

Areas: the north (Medan, Lake Toba, Bukit Lawang) for jungle and the lake; the west-central highlands (Bukittinggi, Padang) for Minang culture and canyons; and the islands (Nias, Mentawai) for world-class surf.

Getting around: flights link the main cities (Medan, Padang, Palembang); long bus and ferry journeys connect the rest - distances are huge, so allow time.

When to go: the drier May - Sep is best; the equatorial climate is hot and humid year-round.

Where to stay: around Lake Toba (Samosir Island) and Bukit Lawang for jungle-and-lake, or the surf islands.

Dining: fiery Padang cuisine (rendang was born here), plus Batak and Acehnese fare and superb coffee (Gayo, Mandheling).

Local tips: it’s wild and adventurous rather than polished - see the orangutans at Bukit Lawang, relax on Samosir Island in Lake Toba, and the west-coast islands have legendary surf.

Sumatra is the long, mountainous island that forms the western edge of Indonesia’s main archipelago. A spine of volcanoes and highlands gives way to peat swamps, lowland rainforest and a ragged coastline of bays and offshore isles; the caldera lake Lake Toba is one of the island’s most arresting geological features. Much of the interior remains wild - only a fraction of the original jungle survives - and more than ten national parks, including Gunung Leuser National Park and Bukit Barisan Selatan National Park, protect pockets of that biodiversity.

Population centres and cultural hubs are widely scattered. Medan is the busiest gateway, a melting pot of Dutch-era architecture, street markets and spicy local food; elsewhere the highland town of Berastagi and colonial-era Bukittinggi frame volcanic views and Batak and Minangkabau traditions. In the far northwest Aceh Province preserves its own strong cultural identity and coastal histories, while the west-coast city of Padang is the main urban centre for West Sumatra.

Sumatra’s wildlife and island fringes supply much of its allure. Jungle treks and orangutan encounters around Bukit Lawang and in Leuser are major draws; the Mentawai Islands and Pulau Nias are renowned for world-class surf, and small islands such as the Banyak Islands and Pulau Weh reward divers and beachgoers with clear water and relative remoteness. Active volcanoes, river valleys and rainforest trails offer opportunities for trekking, wildlife viewing and sea‑based activities.

Practicalities are straightforward: domestic flights link Medan with regional hubs and international gateways in Singapore and Malaysia, while local travel often relies on becaks, buses and ferries to the islands. Accommodation ranges from simple homestays to larger hotels, and the island’s food scene - from Medan’s spicy street fare to Padang’s rich Minangkabau dishes - is a memorable part of any visit. Peak travel months are generally July - August, when it’s wise to book ahead.