• Walker Lake Loon Festival, 9 a.m.-3 p.m. at Sportsman's Beach, Walker Lake. For information, call 775-945-8243 or go to www.walkerlake.org.
• Pepper Memorial Classic Dog Agility Trial at Fuji Park 8 a.m. today and Sunday. Call 425-2375 for information.
• 15th annual Lions Club Brunch, 8-10 a.m. at the Carson City Senior Citizens Center, 911 Beverly Drive, to benefit the Meals on Wheels program. Cost $4 non-seniors, $3 seniors and 11-younger. Call 883-0703.
• Bake, craft, rummage and raffle ticket sale, 9 a.m. to 2 p.m. at St. Paul's Lutheran Family Church, corner of Highway 50 East and Saliman; sponsored by the Carson City Natives and Newcomers. Call 267-3009.
• Earth Day Celebration at the Children's Museum of Northern Nevada, 10 a.m. to 3 p.m., 813 N. Carson St. Cost 2-younger free, ages 3-14 $3, adults $5. Call 884-2226.
• Children's low- and no-cost Immunization clinic, 11 a.m. to 3 p.m. at Carson Mall Shopping Center, 1313 S. Carson St., for hepatitis A and B, chickenpox and other diseases. Bring immunization card to clinic. Call 885-1728.
• Champion Speedway Car Show, 11 a.m. to 4 p.m. at Valley Chevrolet/Pontiac, 2500 N. Carson St. Call 888-9777.
• Greenhouse Garden Center celebrates its 30th anniversary with a barbecue at 11 a.m., 2450 S. Carson St. Hosted by Tetrus Building Materials. Call 882-8600.
• Benefit Wine Tasting and Silent Auction, 6-9 p.m., Brewery Arts Center Ballroom, 449 W. King St., for the Carson High School Marching Band and Flag Team. Tickets $25 at the door. Call 560-4994.
• Soroptimist International of Carson City hosts Comedy Night with champagne and chocolates, 6:30 p.m. at the Brewery Arts Center Performance Hall, 511 W. King St. Features Karen Rontowski and Kat Simmons. Tickets $25; call 883-2211.
• BlueStone performs from 7:30-9:30 p.m. at Comma Coffee, 312 S. Carson St. Cover charge $5; call 883-2662.
• "Reconstruction of the V&T Railroad" benefit, 8-11 p.m. at the Carson Nugget Main Ballroom. Features David John and the Comstock Cowboys; hosted by the Carson Nugget. Tickets $15 general; $10 Prospector's Club members. Free finger food and two no-host cocktails (must be 21 years of age). Call 882-1626.
• Congressman Jim Gibbons, R-Nev., will hold a town hall meeting from 10-11 a.m. at the Douglas County Library, 1625 Library Lane, Minden.
• Carson Valley Pops Orchestra free Spring Concert "From Mozart to Mancini," 7 p.m. at CVIC Hall, Minden. Call 265-2841.
• CD and book signing from noon-2 p.m. with Richard Elloyan, and 2-4 p.m. with Ruggero and Gina Gigli at The Book Den, 1328 Highway 395, Suite 305, Gardnervile. Call 783-1100.