Niagara Cave
Under $25A 200-foot-deep limestone cave near Harmony with an underground stream and 60-foot waterfall.

Photo: Idawriter, CC BY-SA 3.0, via Wikimedia Commons. Cropped and resized.
Allamakee County, Iowa is a sightseeing stop in Waukon, IA, part of the Minneapolis–St. Paul guide. Cost: free.
· Waukon, IA
Allamakee County sits in Iowa's Driftless Area along the Mississippi River, with the river town of Lansing and county seat Waukon serving as gateways to bluff-top overlooks, the Yellow River State Forest, and the nearby Effigy Mounds National Monument. Visitors come for river views, fall color drives, fishing, and small-town Main Streets.
The closest stops to Allamakee County, Iowa, ordered by straight-line distance. A few more like it, plus some different kinds of fun so you can build a full day.
A 200-foot-deep limestone cave near Harmony with an underground stream and 60-foot waterfall.
34 mi awaySwitch it up: Tours
A paddlewheel riverboat offering sightseeing and dinner cruises on the Mississippi River.
40 mi awaySwitch it up: Tours
A Mississippi River bluff town in southeastern Minnesota known for its lakes, limestone bluffs, and historic downtown.
56 mi awayMore like this
Wisconsin's Swiss heritage county, home to New Glarus, cheese factories, and 'eat. drink. yodel.' festivals.
63 mi awayMore like this
One-hour guided tours of the 38-room 1910 mansion Dr. Charles H. Mayo built outside Rochester, furnished with original family pieces and run by the county history center.
73 mi awaySwitch it up: Museums
A Mississippi River town in southeastern Minnesota and home to the National Eagle Center.
81 mi awayMore like this