Windjamming Off Maine
As someone who has visited over 100 countries, I highly recommend taking a week-long windjammer cruise off the coast of Maine.
My wife and I have done this four times, the first trip around 30 years ago. It’s always a delightful experience, though it bears no resemblance to a traditional cruise. (The word “cruise” evokes certain experiences to seasoned travelers, but anyone expecting anything remotely similar to that will be disappointed.)