Feb 24-BSB-half day tour + hotel hopping

Relatively difficult to collect info of Brunei tour. Expensive taxi or time consuming bus...Pls advise:

Feb 24 seems to be national day of Brunei-anything anywhere unique to visit?

People say Empire is huge. What others i should hop for to broaden my horizon?

Any agency that provide organised city tour?-website?

what are those MUst see within 8 hrs in Feb 24?

Thanks

GaryPaula