Conquer winter doldrums with plans for out-of-the-ordinary experiences like floating in a secret Polynesian grotto or spotting polar bears in a thrillingly remote refuge at the top of the world. Every Lindblad expedition is packed with excitement, but here are seven adventures to consider as you decide how to direct your pent-up wanderlust this spring and summer. Get Inspired By Photos, Videos, Webinars, Stories, And Exclusive Offers. Sign Up