Ann Arbor to Port Huron Road Trip Guide: Scenic Drive & Hidden Gems

The route from Ann Arbor to Port Huron along I-94 East and then M-25 North is surprisingly rich with history. Did you know that Port Huron is the birthplace of the modern paper bag and the site of the first underwater tunnel between the US and Canada? This drive offers a mix of agricultural flatlands, river crossings, and Great Lakes vistas. The total distance is about 100 miles (160 km), with a driving time of roughly 1 hour 45 minutes without stops, but you'll want to plan at least 4 hours to explore. Key highways: I-94 from Ann Arbor to just past Mount Clemens, then M-25 along the Lake St. Clair shoreline.

• Start: Ann Arbor (Washtenaw County)
• End: Port Huron (St. Clair County)
• Estimated drive time: 1h45min (non-stop)
• Best time: May to October for foliage and festivals

I-94 is a well-maintained interstate with rest areas near New Baltimore and Chesterfield. M-25 is a scenic two-lane road with 55 mph speed limits and occasional farming traffic. Toll roads: none on this route. Fuel stations are abundant along I-94, but sparse on M-25 north of Algonac. Fill up in Mount Clemens or New Baltimore before heading north. Gas prices tend to be slightly lower in Ann Arbor than in Port Huron.

• Rest areas: I-94 eastbound near mile marker 238 (Chesterfield Township) has restrooms and vending machines.
• Peak traffic: Friday afternoons eastbound from Detroit metro can add 20 minutes.
• Winter note: M-25 near Lake St. Clair can be icy; chains are not required but all-season tires recommended.

The drive transitions from urban Ann Arbor to agricultural flatlands of St. Clair County. Around mile marker 250 on I-94, you'll see the St. Clair River delta emerge. M-25 hugs the Lake St. Clair shoreline, offering glimpses of freighters and sailboats. The Blue Water Bridge connecting Port Huron to Sarnia, Ontario, is a steel arch bridge completed in 1938. For a detour, visit the best stops and hidden gems between cities like the Selfridge Air National Guard Base museum in Mount Clemens or the historic Algonac post office built in 1906.

• Natural attractions: Lakeport State Park (sandy beach), Fort Gratiot County Park (lighthouse views).
• Local commerce: Apple orchards along M-19 (west of I-94) are good for u-pick in fall.
• Don't miss: The Huron Lightship museum in Port Huron, a floating lighthouse.

The route is generally safe with good road quality. Watch for deer crossing at dusk near the St. Clair River. For families, the Jurassic Quest exhibit at the Port Huron Museum (seasonal) is a hit. Pet-friendly stops include the Algonac State Park picnic area (leashed dogs allowed). Fatigue management: plan a break at the New Baltimore rest area (I-94 milepost 241) with walking paths. Rest zones: benches at the Marine City waterfront park (M-29).

• Family stop: Port Huron's boardwalk with a playground and ice cream shops.
• Pet stop: Algonac State Park (off-leash area near the river).
• Safety tip: Lower speed to 45 mph entering Port Huron downtown due to pedestrians.