World's Most Beautiful Ferry Rides

Maine: Among six islands in Casco Bay

There’s no “running” in this mail run. Instead, sit back on the ferry (which also delivers letters and packages) and enjoy the three-hour tour past rugged cliffs, rocky coves, and cute cottages hidden along wooded hillsides on Little Diamond, Great Diamond, Long, Great Chebeague, and Cliff and Peak’s Islands—all an easy hop from Maine’s largest city, Portland.

(Casco Bay Lines: cascobaylines.com; $15 per person round-trip.)