Sometimes the fastest way to experience an adventure is a slow ferry ride!
I have always enjoyed Ferries, even as a kid on the Staten Island Ferry.
One of the best ferry adventures I took was ferrying down the Dalmatian coast from Split to Dubrovnik with several island stops along the way. It’s an awesome way to take in the sights and meet local people as well as other adventurers and off the beaten path travelers (this was in the 1980s when this was way off the beaten path).
Another enjoyable ferry ride was from Seattle to Victoria, BC where my wife and I were able to see whales and other wildlife without having to pay for an expensive tour.
Even in Europe there are plenty of ferries such as Dover to France and throughout Scandinavia, Copenhagen to Malmö (before they built the bridge) and Bergen, Norway to Frederikshavn, Denmark.
Alaska offers many ferry adventures from a few hours to days long trips.
I have not yet determined my Ferry route for this trip, but as I plan in spending more time in the Kenai Peninsula I will look for a leg out of Homer or Whittier.