Join members of the Geneva Lake Conservancy for a guided nature hike. 9 a.m., Wallace E. Zabler Nature Preserve, Burlington; genevalakeconservancy.com.

This 21.5-mile bike ride over paved roads around Geneva Lake and Lake Como supports local charities. The route begins at Champs Sports Bar &...

Enjoy live music performed in an intimate venue. Malt House Theater, Burlington; (262) 763-9873 or thehaylofters.com.

Geneva Lakes Women’s Association’s annual luncheon featuring a silent auction and raffle, followed by “purse-onality” Deb DiSandro. Geneva National, 1221 Geneva National Ave., Lake...

Become a brewer for a day in this immersive experience. 9 a.m. to 3 p.m. Old World Wisconsin, Eagle. For tickets, visit oldworldwisconsin.wisconsinhistory.org.

Scarecrow building, pumpkin decorating, food and live music from the Gebel Girls. Throughout downtown Delavan. 10 a.m. to 5 p.m. For more info, visitdelavan.com.

Event will consist of the sprint, sprint relay, Olympic and Olympic relay races. Fontana Beach, Fontana; for information, visit fontanatriathlon.com.

Enjoy a performance by an award-winning crooner singing vocal jazz and swing with a contemporary punch. 7 p.m. Big Foot Auditorium, Walworth. For tickets,...

Raising awareness and funds to enhance Alzheimer’s care and support. Registration begins at 8:30 a.m., ceremony at 9:40 a.m., walk begins at 10 a.m....

Highlighting downtown Whitewater, the course begins at Whitewater High School and continues through the University of Wisconsin-Whitewater campus and Fairhaven’s Prairie Village, among other...

Hawk’s View Golf Club, Lake Geneva. Charity golf outing, luncheon and silent auction benefiting the local museum. (262) 248-6060 or genevalakemuseum.org.

Featuring fall treats and activities. 9 a.m. to 5:30 p.m., W5740 N. Walworth Rd., Walworth.

Local historian Chris Brookes brings the best-selling author of all time, Agatha Christie, back to life for an intimate evening of mystery and conversation....

Featuring classic cars and farm equipment, plus live music from the Gebel Girls. 9 a.m. to 5:30 p.m., W5740 N. Walworth Rd., Walworth.

Over 500 dealers both inside and outside. Free parking, $5 admission. Opens at 7 a.m. Walworth County Fairgrounds, 411 E. Court St., Elkhorn; walworthcountyfair.com.

Become a brewer for a day in this immersive experience. 9 a.m. to 3 p.m. Old World Wisconsin, Eagle. For tickets, visit oldworldwisconsin.wisconsinhistory.org.

Participants release lighted lanterns in honor of lost loved ones or to symbolize hopes for the future 5-11 p.m.; Walworth County Fairgrounds, 411 E....