Some would say there’s no better way to celebrate the great outdoors than wearing a kilt. Fall brings this and other festivals that turn our attention to nature.

New England Fall Astronomy Festival, Friday and Saturday, Sept. 21 and 22
www.physics.unh.edu/observatory
A talk called “Dark Energy and the Runaway Universe” kicks off the totally free and immersive weekend of astronomy-related activities and experiences for children, families, and people of all ages and expertise. Hosted by the UNH Physics Department and staffed, organized, and driven by members of the astronomical community from throughout New England, the event includes special talks, readings, presentations and hands-on activities for kids and their families (make your own sundial, moon phase clock, planisphere, and more). Plymouth State University Meteorology Program will launch a weather balloon, New Hampshire’s preeminent meteorite expert will show you how to identify rocks from space, and scientists will talk about the exciting space science research that’s being done right here in New Hampshire. At the Telescope Clinic, find out what’s ailing your personal telescope or how to use that one you bought but never fully understood. There will be solar and nighttime observing from dozens of telescopes of all shapes and sizes, and a raffling off of four new telescopes. For more information, call 603-862-3996.

Highland Games, Friday to Sunday, Sept. 21-23
www.nhscott.org
What’s not to love with a gathering of the clans, pageantry, world championship Scottish heavy athletic events, sheep dog trials, music, dance and, yes, whisky tasting, all nestled snug at the base of Loon Mountain? It’s a daytrip for Seacoast residents, but the 37th annual event counts itself as one of the largest and most diversified Scottish festivals in the Northeast. Information on the festival, day and performance passes online or at 603-229-1975.

Punkinfiddle and National Estuaries Day Celebration, Saturday, Sept. 22
www.wellsreserve.org
This event connects the beauty of life on the coast with the natural systems that support it by celebrating the richness of estuaries (the waterfront where salty water meets fresh), Maine’s cultural traditions and the Laudholm Farm historic saltwater farm site. This annual fall festival features environmental education, artisan demonstrations, lively music, wholesome food, farm animals, and children’s activities from 10 a.m. to 4 p.m. Admission is $5.For more information, call 207-646-4521.