Aug. 5: Suncook Valley Rotary Club 37th annual Hot Air Balloon Rally, Drake Field, Pittsfield. The three–day event highlights hot air balloons taking flight once on Friday, twice on Saturday and once on Sunday; with night glows on Friday and Saturday once the sun goes down. Fireworks Saturday night following the night glow. Tethered balloon rides, helicopter rides, walk-through balloon, dog demonstrations by Inspire K9’s Training Center, the return of the Anything That Floats River Raft Regatta, Corn Hole Tournament, Touch A Truck and Meet a Mascot, carnival rides, food vendors and crafters as well as the Rotary’s “world famous” Pancake Breakfast Saturday morning and the Egg Breakfast Buffet on Sunday morning. The weekend activities will wrap up with the Frank H. Donovan 5k Road Race on Sunday Morning. Free. Full schedule and additional information:

Aug. 5: 9th Annual Jericho ATV Festival, 8 a.m.-4 p.m., Jericho Mountain State Park, Route 110, Berlin. Entry fee is $10 per person per day, free for children 6 and under, when accompanied by an adult. Participants and spectators enjoy scenic off–road riding with ATV mud races and grudge runs, a poker run, obstacle course, helicopter rides, ATV and riding gear displays, demo rides, Kids Zone and Youth ATV simulator. Saturday schedule: Blessing of the ATVs, Opening Ceremony: Welcome Center Parking Lot, 8:30 a.m.; Mud Pit Races, 8-10 a.m.; Elimination Heats, 10 a.m.-noon (estimated time); Finals, 1-4 p.m. (estimated time); RaveX Freestyle Show, 11 a.m.; Demo Rides from Polaris, Can-Am, Kawasaki, Textron Off-Road, and Hisun, 9 a.m.-4 p.m. All day: Obstacle course, youth ATV simulator, after-market vendors, food vendors, Kids Zone, archery tag, and demos by East Coast Hoppers. Evening activities: Jericho ATV Family Concert in the Park at the Service Credit Union Heritage Park, 942 Main Street, Berlin. Live music by Last Kid Picked, beer tent, s’mores by the campfire, archery tag, and food vendors, 4-9 p.m. Information: 752-6060,

Aug. 5: Bootcamp in the Vineyard with Elevate Health Studio, 10 a.m., LaBelle Winery, 345 Route 101, Amherst. $15 class only; $20 class and wine tasting. ID: 7273625.

Aug. 5: Guided Paddle: Newfound Water Trail. Choose from a canoe, single/double kayak, or paddleboard and learning about the geology and ecology of Newfound Lake, 2 p.m., NH Audubon’s Newfound Center, 290 N. Shore Road, Hebron. $30 Member/ $35 Non–member. ID: 7210973.

Aug. 6: Volunteer Trail Work Day, 9 a.m.-1 p.m., meet at the Squam Lakes Association, 534 US Route 3, Holderness. Clear waterbars, removing blowdowns, clear encroaching branches. Free. ID: 7237375.

Aug. 8: Tributary Treks. Explore our local waterways and the wildlife that use them by visiting some of these sites with Fishways staff, 9:15 a.m., Amoskeag Fishways Learning and Visitors Center, 4 Fletcher St., Manchester. $10 per family per session. Registration with payment required: 626-FISH. ID: 7286563.

Aug. 8: Summer Polliwogs Program – Flying Friends. From birds to bats to insects, there are lots of critters that swoop and soar in the sky. Let’s find some and discover how they do it and why, 10:30 a.m., Prescott Farm Environmental Education Center, 928 White Oaks Road, Laconia. $10-$16. ID: 7253724.

Aug. 9: Volunteer Trail Work Day, 9 a.m.-5 p.m., meet at the Squam Lakes Association, 534 US Route 3, Holderness. Focus on clearing waterbars, removing blowdowns, clearing branches. Free. ID: 7237412.

Aug. 10-12: 5th annual 5 Summit Challenge. There will be a choice of 13 mountains to climb and the five peaks chosen must equal 20,000 feet or higher, all day, Waterville Valley Town Square, Route 49, 6 Village Road, Waterville Valley. Free. ID: 7259826.

Aug. 10-12: Belknap County 4-H Fair. Numerous open animal shows, oxen and tractor pulls, horses, live demonstrations, 4-H exhibits, entertainment, food, exhibits, crafts. Check the schedule at The Belknap County Fairgrounds are located off Route 106, on Mile Hill Road in Belmont. General admission: adults (age 10 & up) $7, children (under 10) free. Friday, 6-9 p.m.; Saturday, 9 a.m.-7 p.m.; Sunday 9 a.m.-5 p.m. Gates open at 8 a.m.

Aug. 11: Annual 5K for Kids, 7 a.m., Lamprey Health Care, 207 S. Main St., Newmarket. $30. ID: 7239494.

Aug. 11: 42nd Alton Bay Boat Show, 9 a.m., Alton Bay Town Docks, 289 Daniel Webster Highway, Alton Bay. Free. ID: 6888256.

Aug. 11: Fungal Foray Mushroom Walk with Tommy Stoughton, 9:30 a.m., Museum of the White Mountains, 34 Highland St., Plymouth. Free, suggested donation $10. ID: 7157935.

Aug. 11: Making Herbal Syrups for Health and Healing. Students will learn how to identify herb medicine plants of the fields and forest, how to harvest and use the herbs in preparations for pleasure and medicine, 10 a.m., Prescott Farm Environmental Education Center, 928 White Oaks Road, Laconia. $30-$35. ID: 7254451.

Aug. 11: Aquatic Plant Ecology Exploration. Head out to Moon or Bowman Island, where participants will use SLA provided canoes, kayaks, or snorkel gear during to identify look–alikes to the invasive plant, variable milfoil, and become familiar with aquatic invasive plants that are not currently found in Squam, 10 a.m., Squam Lakes Association, 534 US Route 3, Holderness. Free. ID: 7267992.

Aug. 11: Campfire Stories & S’Mores, 7 p.m.. Explore Chamberlain Reynolds Memorial Forest in the evening. Go on a short walk before gathering around the fire to end the evening with s’mores. Bring a flashlight. Meet at the beach closest to Wister Campsite #1 at Chamberlain Reynolds, Holderness at 7 p.m. Free. ID: 7237265.