1 / 6





Alton Marina
Alton Marina sits right on the Mississippi River and claims the title of finest 5-star marina on the river — a bold call, but the facilities back it up. You'll find clean bathrooms, laundry, free Wi-Fi, a floating pool, and fuel services all on site. It's a laid-back but well-run spot, with office hours that stretch through the week so you're not left scrambling. Alton itself is a historic river town worth exploring when you're off the water.
Marinas and anchorages near Alton Marina · times are dock to dock
Based on AIS data
quiet → busy
Popular Times
How full it gets, by local hour — tallest when the most boats are here.
00:0006:0012:0018:0023:00
Mon
Tue
Wed
Thu
Fri
Sat
Sun
- Fullest around 01:00, emptiest around 09:00
- Half the boats arrive by 13:00
- 93% of visits are overnight
- Typical day stop: ~4h · max recorded 19 boats
Plan a Passage
Popular
11 legs boats have actually been recorded sailing.
Looking for more options? Search all boats near Alton →





