New year, new travel plans. You don't have to wait for the weather to heat up to head on holiday (although in South Florida, even winter is far from frigid). We've traversed the globe and polled some of the leading experts to uncover a few of the up-and-coming destinations that should be on your radar for 2019. From Antarctic expeditions and river cruises in Southeast Asia to luxurious new hotels in places closer to home (the Caribbean is back and better than ever), here are four seasons worth of locales to add to your travel bucket list. Start packing!