It’s a bit tricky to jog on a treadmill on the deck of a moving ship. The pitch, the roll, your stride, your rhythm. You have to anticipate, to compensate as your foot lands short when the deck pitches upward, or extend your stride when the ship pitches down into the troughs.
I’m not talking about those massive cruise ships with their massive stabilizers. I’ve never been on one and, quite frankly, have no desire to ever go cruising with 4000 of my closest friends. My preference is for smaller vessels, which usually advertise themselves as eco-cruisers or expedition ships, like the 367-foot long, 148 passenger National Geographic Explorer. The Explorer, too, has stabilizers of course, but the ship is small enough for you to feel the ocean, to connect with it in a way impossible on big ships. That may not always be a good thing – barf bags anyone? But when the swells are just right, it’s like being rocked to sleep in a hammock while the slap of the waves against the hull, the faint hum of the engines, and the cries of the trailing seabirds become the sea’s background music.