Sungai Kinabatangan - the Kinabatangan River - was planned on advice from a previous visitor to be the wildlife viewing highlight of our time in Borneo.
And so it proved to be.

The river is the largest in Sabah.
We stayed three nights in a lodge in the forest on the river bank in the middle of the 100 km or so of the river that meanders across Sabah's northern plain.
Alas, much of the plain is covered with Oil Palm plantations, but a significant portion of the riverside forest has been reserved.

Each day at dawn and again late in the afternoon, we headed out in a boat with the main aim of viewing the primates that concentrate along the river bank overnight.
Most prominent among these were large troops of Proboscis Monkeys. Other primates seen include (in diminishing order of abundance) Long-tailed Macaques, Silvery Langurs and Orangutan.

There were other highlights. One was the abundance of hornbills, with five species seen.
Another was to see, whilst spotlighting in the forest at night, that strange creature called a Moonrat. It is pure white, the size of s amall cat, has a pointy nose and is not a rat at all but a distant relative of shrews.
And finally, we were wonderfully blessed to see - and observe at length and at remarkably close quarters - a group of 13 wild Asiatic Elephants. I'll devote a separate gallery to them in due course.