One more thing of linguistic interest from the Bukit Mentiri forest walk: someone from the Forestry Department has labelled lots of the trees in different local languages. For example, the following tree has been named in Brunei Malay, Tutong, Kedayan, Dusun, and Iban:
I was puzzled by the following sign, which also has 'KM'. So I asked one of the villagers (many of whom are clearly putting lots of effort into maintaining the trail magnificently), and he told me that 'KM' refers to 'Kampung Mentiri' or maybe 'Kadayan Mentiri' -- he wasn't sure which, though maybe there's no difference, as most of the villagers are Kadayan.
It is splendid to see this effort being spent on making a record of words from the heritage languages of Brunei, as some (such as Belait) are almost extinct and others (such as Tutong) are under severe threat of disappearing.