Lake Byllesby is a scenic 1,400-acre reservoir on the Cannon River in southeastern Minnesota, offering swimmers a peaceful escape surrounded by wooded shorelines and gentle landscapes. This charming lake captures the essence of the Upper Midwest with its mix of natural beauty and recreational opportunities. The calm waters make it ideal for swimmers of all skill levels, while the surrounding park provides a tranquil atmosphere away from crowded tourist destinations. The lake's character reflects Minnesota's commitment to preserving natural spaces for public enjoyment. Wildlife viewing is exceptional here, with opportunities to spot eagles, herons, and deer along the shoreline. The reservoir's depth variation accommodates different swimming preferences. Tip 1: Visit during weekdays for fewer crowds and a more serene swimming experience. Tip 2: Arrive early to secure parking and enjoy the best water conditions of the day.
About This Lake
Swimming Conditions
Lake Byllesby maintains moderate water clarity with visibility typically ranging from 4 to 8 feet, making it suitable for casual swimming but not ideal for underwater exploration. Summer water temperatures average 72-74°F, peaking in July and August, creating comfortable conditions for extended swimming sessions. The lake's depth varies significantly, with shallow areas near the beach ideal for families and children, while deeper zones up to 40 feet exist in the central basin. The swimming area near the main beach offers the safest conditions with relatively calm waters and gradually sloping bottom. Currents are minimal due to the reservoir's protected nature, though wind can occasionally create minor wave action in open water areas. No lifeguards are stationed at the beach, so swimmers must practice self-rescue awareness and buddy system protocols. Water quality is monitored by local authorities, and the lake remains generally safe for recreation throughout the swimming season.
Visitor Information
Lake Byllesby is located near Cannon Falls, Minnesota, approximately 60 miles south of Minneapolis-St. Paul via Interstate 35 and Highway 52. Free parking is available in the day-use area with capacity for approximately 150 vehicles. Facilities include restrooms, picnic tables, grills, and a boat launch. The park features a sandy beach area maintained seasonally. Nearest food options are found in nearby Cannon Falls, about 15 minutes away, offering casual dining and grocery stores. For overnight stays, Cannon Falls provides modest hotels and bed-and-breakfast options. The park is operated by Goodhue County and remains open year-round, though swimming season peaks from June through August. Best time to visit is mid-June through mid-September when water temperatures are warmest and weather is most stable. Fall visits offer beautiful foliage and fewer visitors. Spring can be muddy and chilly for swimming.
A Perfect Day at Lake Byllesby
Start your day at Lake Byllesby by arriving around 9 AM to secure prime parking and enjoy the morning calm before wind picks up. Spend the late morning swimming in the designated beach area, where shallow waters are perfect for wading and leisurely strokes. Pack a picnic lunch and enjoy it at one of the shaded tables while watching for wildlife along the shoreline. Spend the early afternoon exploring the park's walking trails through the wooded areas surrounding the lake. Return to the water for an afternoon swim when temperatures peak. Watch the sunset from the beach before heading home around 6 PM.
Lakeside Escape to Cannon River Country
Day 1
Arrive at Lake Byllesby on Friday afternoon and set up at the day-use area. Take an introductory swim to test the water temperature and familiarize yourself with the beach area. Explore the park's trails as the sun begins to set, looking for wildlife and enjoying the cooler evening temperatures. Have dinner in nearby Cannon Falls, a charming small town with local restaurants and shops.
Day 2
Return to Lake Byllesby early Saturday morning when conditions are calmest and water is freshest. Spend several hours swimming and relaxing on the beach. Visit the Cannon River area for kayaking or fishing if interested. Explore additional trails in the afternoon before heading back to Cannon Falls for a final dinner before the drive home.
44.3564, -92.6189
Is Lake Byllesby safe for swimming?
Yes, Lake Byllesby is generally safe for swimming with calm conditions and moderate water clarity. However, there are no lifeguards on duty, so swimmers should use the buddy system and practice water safety awareness. Water quality is monitored by county authorities.
What is the best time to swim at Lake Byllesby?
The best swimming season runs from June through September, with peak conditions in July and August when water temperatures reach 72-74°F. Early morning swims offer the calmest water conditions before wind develops.
Is there an entry fee at Lake Byllesby?
No, Lake Byllesby day-use access is completely free. The park is operated by Goodhue County and welcomes visitors without charge during open hours.
What facilities are available at Lake Byllesby?
The park provides free parking, restrooms, picnic tables, grills, and a sandy beach area. A boat launch is also available for those with watercraft. Facilities are maintained seasonally.
Can you camp near Lake Byllesby?
Lake Byllesby itself is day-use only without camping facilities. However, nearby Cannon Falls offers accommodations including hotels, bed-and-breakfasts, and private campgrounds within 15 minutes of the lake.
📋 Sources & updates
Compiled from official park, state and lake-authority information.Swam at Lake Byllesby?
Tag us on Instagram. The best photos get featured on this page.
#LakeByllesbySwimming @swimminglakes