Travel
Traveling is one of the greatest sources of well-being, and you may change and enjoy it very much. Traveling is simply the best.
What do you think?
Notes about my edits: look how I put a conjunction after the first idea - that helps the reader see you have a new thought/idea approaching. The second idea uses a pronoun -it - to refer to 'traveling'. That last idea was missing both a noun (the subject) and the verb (the action).