Sumatra Rainforest Trek

Tropical Forest Mammals Advanced Indonesia — Gunung Leuser May to September

Overview

Search for critically endangered Sumatran orangutans and tigers in Leuser's pristine jungle.

Equipment

  • Trekking boots
  • Leech socks
  • Water purifier
  • Hammock and tarp

Safety Notes

  • Never trek alone — guides mandatory
  • Bee stings and venomous snakes are hazards

Identification Tips

1

Orangutan nests visible as platform-like structures high in canopy

2

Thomas's langur alarm calls indicate predator presence

3

Fresh tiger scratch marks on trees are territory markers

Species Checklist

Species Likelihood Tip
Sumatran Orangutan uncommon Fruiting trees in primary forest
Thomas's Langur common Canopy groups with loud calls
Sumatran Tiger rare Pugmarks on muddy trails
Rhinoceros Hornbill common Loud wingbeats overhead