Normally there's nothing Miamians hate more than taking the Metrobus anywhere — even the more loathsome act of sitting in rush hour traffic day after day seems preferable. (We're not even going to discuss that thing called "walking.") But twice a year some of these same Miamians fight over the privilege of spending their Saturday mornings crammed together riding a city bus. Since 1994 Miami-Dade Transit has offered a free black history tour that winds through the city's oldest African-American neighborhoods. You'll visit Overtown, Coconut Grove, Liberty City, Allapattah, and Brownsville while knowledgeable staff rap about people like D. A. Dorsey and E.W.F. Stirrup, and places such as the Lyric Theater and Georgette's Tea Room. Even though the tour is barely advertised, it is so popular that you have to register in December to make sure you have a seat in February. The transit department added a Hispanic Heritage version in 2000 that travels through Little Havana, downtown, and the Orange Bowl area. It features Domino Park, a cigar factory, and other Hispanic points of interest, while introducing you to Cuban celebrities and revolutionary heroes. That tour is offered in English and Spanish. Both tours are free and last three to four hours. The black history tours are in February; the Hispanic tours are in October. Early reservations are mandatory. See you on da bus.