customs won't be a problem. the only hitch might be that the airline staff may not want to let you handcarry on. but usually they can be reasoned with lah.
as long as you know you've got some nice landscape opportunities on your trip, why not bring it along? you can leave it in the hotel if you're just going shopping, and only bring it out for night shoots, parks etc.
i took my tripod along on two trips recently, to vietnam and hongkong. both times, i only used the tripod on one occasion - the sungsot caves at halong bay in vietnam, and to take a panorama at victoria peak in hk. was worth it even though i used it so little, because it was hardly any hassle, and wouldn't have gotten the shots otherwise.