Indonesia
The river is the road: Borneo's barges, ferries and stilt houses all face the Mahakam.
From the water, Samarinda reorganises itself: bridges overhead, barges and ferries working the current, stilt neighbourhoods stepping down to the banks. The Mahakam is the road, and the city is its traffic.
The Mahakam drains nearly a thousand kilometres of East Kalimantan, and at Samarinda it is a working artery: a scheduled public cruise runs the city reach, passing bridges, river commerce and stilted waterfronts in a couple of open-deck hours. The far upriver world of lakes, wetlands and Dayak communities is a separate, longer expedition arranged independently with its own operators, and the city sailing makes an honest introduction rather than a substitute. Samarinda's waterfront works before and after, and Irrawaddy dolphins belong to the river's luck, not its promises.
Solo
A published departure gives one traveller the river without chartering anything.
Friends
Take the same sailing, then argue over dinner about the upriver trip you now want.
Amplang fish crackers, kuku macan, are East Kalimantan's snack, sold along the waterfront.
The public boats keep a simple cafeteria menu; the waterfront eats better before and after.

Sète
France
A canal-laced fishing port where jousting boats clash and Brassens's songs drift along the quays.

Isla San Lucas
Costa Rica
A prison island that held inmates for 118 years, now reclaimed by jungle and howler monkeys.

Conceição do Mato Dentro
Brazil
Three hundred and fifty-six springs rise in one park; the waterfalls below are what they become.

Acheron River
Greece
Wade into the ice-cold River of the Dead — Greeks believed it flowed to Hades.

Wae Rebo
Indonesia
Seven thatched cones stand alone in a mountain clearing with cloud drifting through the village.

Halmahera
Indonesia
Wallace's standardwing dances at dawn on the island that shaped his theory.

Tana Toraja
Indonesia
Cliff tombs watched by wooden effigies, in highlands where funerals set the calendar.

Makassar
Indonesia
Wooden phinisi still tie up at Paotere, where the fish market erupts at dawn.