Flying lemurs, macaque monkeys, eagles . . . Langkawi offers a full-on jungle experience. One of best ways to experience the incredible array of wildlife that the region has to offer is a mangrove cruise.
We used Junglewalla for a half-day excursion and thought the outing was very well done and that the naturalist on board (a local) was informative and friendly.
Here's a tip, though: contact Junglewalla (or research other providers, there are plenty of them) on your own. Our resort offered to arrange the trip for us, and the upcharge of having the concierge make the call was substantial.