(MONEY Magazine) – After December, you can say adios to Cuba. That's when licenses held by groups that sponsor educational trips to the island expire. (In response to President Bush's tougher stand on Fidel Castro, the U.S. government no longer issues licenses for the tours, which provide the only legal way for American tourists to travel there.) Book fast if you want to go (all prices are based on double occupancy). Insight Cuba (insightcuba.org) has 17 trips left, including a two-week tour with departures from Miami, for $2,899, which includes lodging and some meals but not air fare (budget an extra $450). The National Trust for Historic Preservation (nationaltrust.org) still has openings for its "Cuba: Its Outlying Cities" trip, from Nov. 8 to 15. The cost is $3,995, including lodging, lectures and most meals (but not air fare). Finally, the Center for Cuban Studies' (cubaupdate.org) seven-day performing-arts trip, $2,900, departs Nov. 22 and includes air fare, lodging and some meals. --MEGAN JOHNSTON