Start with Kesennuma Umi no Ichi, right in the Kesennuma Port area, which is exactly the kind of easy first stop you want after arriving. If you get there around lunchtime, you can usually grab a seafood bowl, grilled fish, or a set meal for about ¥1,500–¥3,000, then browse the souvenir stalls without feeling rushed. It’s a lively, practical place rather than a polished tourist complex, so it gives you a real first impression of the town’s fishing culture. If you’re driving, parking is straightforward; if you’re arriving by bus or taxi, this is still the best place to start because everything else on the port side is within a short hop.
From there, head a few minutes over to the Kesennuma Fish Market, where the atmosphere gets a little more working-port and a little less market-hall. This is the place to see Kesennuma’s seafood identity up close: local catches, fishing trade energy, and small snacks or quick bites you can try on the spot. Budget around ¥1,000–¥2,500 depending on whether you just snack or turn it into a light meal. Keep this stop flexible—if something looks especially good, linger; if not, one hour is enough before moving on to the next stop nearby.
Before dinner, pop into the Kesennuma “Ice Aquarium” at the Kesennuma Fish Market for a short, quirky indoor break. It’s not a long visit—about 45 minutes is plenty—but it’s one of those only-in-Kesennuma side experiences that makes the day feel special, especially if the weather is warm or humid. Since it’s in the same port area, you don’t need to overthink logistics; just walk over or take a very short taxi ride if you’re carrying shopping bags. Then finish the day with a proper seafood dinner at a seafood restaurant near the port—look for a place serving tuna, sashimi, grilled fish, or sanma if it’s in season, and expect roughly ¥3,000–¥6,000 per person for a satisfying evening meal.
After dinner, take a gentle harbor-side evening stroll around the Kesennuma Port and central waterfront. This is the best low-effort way to end your first day: the working harbor feels calm at night, the views are simple and real, and it gives you a clean first read on the city before tomorrow’s fuller exploring. Plan on about 45 minutes, and if you’re staying nearby, you can just wander until you feel ready to call it a night.
Start your day at Kesennuma Port with the Kesennuma Bay Cruise, which is the easiest way to see how the harbor, islands, and rebuilt waterfront fit together from the water. Boats usually run on a fairly relaxed schedule, but it’s smart to aim for a morning departure so you’re not racing the rest of the day; expect about 1 hour on the water and roughly ¥1,500–¥2,500 depending on the route and operator. Bring a light layer if it’s breezy on deck, and if you’re driving, park near the port area and give yourself a few extra minutes to find the boarding point.
From the port, head to Rias Ark Museum of Art in the Otani area for a slower, more reflective stop. This is one of Kesennuma’s best cultural visits, with exhibitions that connect art, the landscape, and the city’s reconstruction story; plan on 1.5–2 hours here, with admission typically around ¥500–¥1,000. After that, go up to Mt. Ofuna Observatory for the kind of wide-open view that makes the whole ria coastline click into place—on a clear day you can really appreciate the indented bays and hills. It’s best as an early-afternoon stop before the light gets too harsh, and you’ll want about 1 hour there including photo time and the short bit of wandering around the viewpoint.
Keep lunch easy and unhurried at a harbor-view restaurant or café in central Kesennuma so you can reset before the drive. Places around the port and central waterfront often do seafood set meals, curry, pasta, or lighter cafe plates for around ¥1,200–¥2,500 per person, and a window seat is worth waiting a few minutes for if one opens up. After that, continue north for the Minamisanriku / Sanriku coastal drive viewpoint stop; this is the stretch where the day becomes less about ticking off sights and more about watching the coast unfold, with rugged bends, photo pull-offs, and a really satisfying sense of space. Budget 2–3 hours total for the drive and stops, and if you’re not familiar with the roads, just take it slow—there’s no need to rush this part.
Wrap up back in central Kesennuma with a seafood izakaya or local dinner spot and make it a proper last night meal. Look for a place pouring local sake and serving things like grilled fish, sashimi, oysters when in season, or a hot simmered dish; a comfortable dinner here usually lands around ¥3,500–¥7,000 per person. If you’re driving out the next morning, it’s worth finishing dinner a little earlier and keeping the evening relaxed, so you can leave time for one last walk near the waterfront before turning in.