With emerald green water surrounded by dense jungle, the Batang Ai reservoir is a truly stunning and unique sight.
The tips of treetops still emerge from the surface of the lake, a visual reminder of the valley that was flooded in the 1980s to create the reservoir.
Longtail boat trips upstream from the reservoir are a particular highlight and it is not unusual to come across a bend in the river partially blocked by boulders, forcing your Iban boatman to skillfully manoeuvre you around these obstacles before continuing upstream.
Once you reach the remote villages of this near-impenetrable jungle there is the chance to have lunch with local Iban families, visiting their longhouses, witnessing their distinctive lifestyle and experiencing their ancient culture.