Brunei is easy to visit but awkward to get around: buses are sparse, taxis are few, the mosques have limited visiting hours and Ulu Temburong National Park is normally entered with a licensed operator. A tour with transport solves most of that in one booking.
Everything here is booked through GetYourGuide, which means live availability, free cancellation on most options and reserve-now-pay-later on many. Prices are indicative “from” amounts in euros and change with the season and exchange rate — tap any card for the live price in your own currency.
An honest note on choice: GetYourGuide’s catalogue for Brunei is small — around fifteen experiences at the time of writing, several of them new and with few or no reviews. We list everything relevant, say plainly where reviews are thin, and explain how to visit each place independently on our things to do pages.

