Answer: I would say a sea journey would be different than a train journey, because by sea, you can get where no train can go (like across a continent or to a island), a train will not cross any water unless its something like a river and needs a bridge. A train is different because obviously its not water, and to me, a train would be more adventurous because you will get to see more than you would on the sea, because a sea is just a sea, you wont find much else (perhaps a island), but on a train you don't know what to expect, maybe see a giant sculpture or a beautiful view of something like a mountain or a great scenery or landscape. P.S. I hope this helps!