Sandusky to Alpena: Ultimate Lake Erie to Lake Huron Road Trip

Did you know that the Sandusky River flows directly into Sandusky Bay, a natural harbor that once made this Ohio city a major Great Lakes shipping hub? Today, that legacy of movement defines the drive north to Alpena, Michigan, a route that traces the eastern edge of the Lower Peninsula for roughly 400 miles. The trip takes about 6.5 hours of pure driving time via I-75 and US-23, but with stops, you'll want a full day.

To answer the question is it worth driving Sandusky, OH to Alpena, MI, absolutely—this journey delivers a rare blend of industrial history, pristine freshwater coastline, and uncrowded state parks. The best stops Sandusky, OH to Alpena, MI aren't the obvious tourist traps; they're the tiny fishing towns and fossil-rich beaches where you can walk for miles without seeing another soul.

For those wondering how long to drive Sandusky, OH to Alpena, MI, plan for 7–8 hours with moderate stops. The route is mostly divided highway, but the final leg along US-23 hugs the Lake Huron shore, offering panoramic views that demand pull-offs. Use a strategy of alternating 2-hour driving blocks with 30-minute breaks—a rhythm that keeps fatigue at bay while allowing for spontaneous exploration. For deeper tips on curating your own stop list, see how to find the best stops and hidden gems between cities.

The backbone of this trip is I-75 from Sandusky to just north of Bay City, where you'll exit onto US-23 for the coastal run into Alpena. I-75 is a well-maintained interstate with multiple service plazas, but once you hit US-23, rest stops become fewer—plan to gas up in Standish or Harrisville.

Tolls are nonexistent on this route, but watch for variable speed limits through construction zones near Detroit. The average fuel economy for a standard sedan is about 28 mpg, so budget for roughly 14 gallons total. Gas stations cluster near highway exits; prices tend to be higher in tourist towns like Oscoda.

• Gas stops: Monroe (exit 11), Flint (exit 123), Standish (exit 188), Harrisville
• Rest areas: I-75 rest areas near Monroe and Birch Run; US-23 scenic overlooks near Au Gres
• Payment: Most stations accept credit cards; some rural stations are cash-only
• EV charging: Electrify America stations in Bay City and Alpena; Tesla Superchargers in Detroit

Start your journey by crossing the Maumee River near Toledo, where the landscape shifts from Ohio's farmland to Michigan's vast forests. The route passes through the Detroit River International Wildlife Refuge, a haven for migratory birds. Further north, the Huron National Forest offers miles of pine-covered dunes and river canyons.

The only UNESCO World Heritage site within a detour is the Poverty Point in Louisiana—skip it. Instead, focus on the Thunder Bay National Marine Sanctuary in Alpena, a protected area with over 100 shipwrecks. For things to do between Sandusky and Alpena, visit the R.E. Olds Transportation Museum in Lansing or the Deckerville Historical Museum.

• Natural attraction: Tawas Point State Park (sand spit and lighthouse)
• Cultural spot: Alpena County George N. Fletcher Public Library (local history archives)
• Shopping: Antique shops in East Tawas; handmade fudge in Oscoda
• Local market: Alpena Farmers Market (Saturdays, May–October)

I-75 is generally safe, but aggressive driving near Detroit is common. Use the right lane and keep a safe following distance. On US-23, watch for deer, especially at dawn and dusk. Cell service is spotty north of Harrisville, so download offline maps.

For families, the Children's Museum of Saginaw offers a 30-minute detour. In Alpena, the Great Lakes Maritime Heritage Center has interactive exhibits. Pets are welcome at most state parks (leashed). Rest stops with dog areas include I-75's rest area near exit 164.

• Kid-friendly: Crossroads Village & Huckleberry Railroad (Flint), Besser Museum (Alpena)
• Pet-friendly: Negwegon State Park, Harrisville State Park (dog-friendly beaches)
• Fatigue breaks: Standish rest area has picnic tables; Oscoda Beach Park has shade
• Hidden off-route: Sturgeon Point Lighthouse (off US-23 near Harrisville), empty beaches at Negwegon