Beach · Lake Michigan · Wisconsin
Sister Bay Beach
A public beach on Lake Michigan in Door County, Wisconsin, about 110 feet of shore. The state samples the water for bacteria 3 times a week through a 102-day swim season.
The beach
On the record
- Water
- Lake Michigan
- Location
- Door County, Wisconsin
- Length
- about 110 feet
- Owner
- Public
- Access
- Public Access
- Water sampling
- Yes — 3 times a week in the swim season
- Swim season
- 102 days, as reported
- Monitoring tier
- Tier 1 — the state’s highest monitoring priority
- EPA beach ID
- WI847906
- Coordinates
- 45.1901° N, 87.1218° W to 45.1900° N, 87.1221° W
As the state reported it to EPA for the 2025 season. Sampling schedules change year to year. How beach monitoring works →
Down the shore
Nearest Michigan beaches
- Pebble Beach Road Door1.5 mi · sampled · WI
- Ephraim Beach3.8 mi · sampled · WI
- Sandy Bay Town Park Beach4.2 mi · sampled · WI
- Ellison Bay Town Park Beach4.8 mi · sampled · WI
- Nicolet Beach5.2 mi · sampled · WI
- Newport Bay Beach7.2 mi · sampled · WI
Straight-line distance.
By boat
Launches nearby
- Sister Bay Marina0.2 mi · trailer ramp
- Ephraim Boat Ramp3.5 mi · trailer ramp
- North Bay/Lake Michigan Boat Ramp4.0 mi · trailer ramp
- Lake Michigan - Rowleys Bay Access4.7 mi · trailer ramp
On the horizon
Lighthouses nearby
- Eagle Bluff Light5.8 mi
- Cana Island Light7.9 mi
- Baileys Harbor Range Rear Light8.2 mi · deactivated
On shore nearby
Worth the stop
- Cave Point County Park19 mi · park
Off the beach
What to fish on Lake Michigan
Source
Facts on this page are from the EPA BEACON profile for beach WI847906, the record Wisconsin files under the federal BEACH Act, retrieved 2026-10-10. The county is placed from the beach’s own coordinates. A blank field means the record is silent. Parking, fees, lifeguards and dog rules are set by whoever runs the beach; check with them before you go.
Chart shoreline generalized from Natural Earth (public domain). Not for navigation. Something wrong or missing? Write to contact@greatamericanlakes.com.