I have spent the last 10 days on a boat with mainly over 27's. It has been interesting in that most of them are crossing things off their bucket list, one by one. The Northern Lights are a major feature, it seems, along with snorkelling or diving the Great Barrier Reef. The major one I have on my list now is the Galapagos Islands, and Machu Pichu.
What do you have on yours? What do you want to do before the cranky knees and bad hips catch up with you?