Sammy the Sea Otter, the mascot of the U.S. Coast Guard, is one of many safety and community partners that will be on-site throughout the Moraine State Park Regatta weekend.

MUDDY CREEK TWP — The 22nd annual Moraine State Park Regatta returns to Lake Arthur's South Shore, 225 Pleasant Valley Road, Portersville, Friday through Sunday.

Festivities will span most of the shoreline and include both land and water activities. The regatta is open from 4 to 8 p.m. Friday, 10 a.m. to 10 p.m. Saturday and 10 a.m. to 6 p.m. Sunday.

The event has grown in popularity in recent years, drawing a record of more than 23,000 attendees in 2019 before being postponed in 2020. Sponsored by Diehl Toyota, the event is free, including parking.

“We wanted to make up for missing out last year by extending the regatta's presence, both physically on the shoreline and over the weekend by adding an additional day on Friday,” said Amanda Becker, event director. “Plus, there are more free activities and outings over the weekend than ever before.”

Those free eco-recreational activities are part of Get Moving! Moraine, an initiative aimed at introducing visitors of all ages to new sports and hobbies while showing off the park.

Fifteen local partner organizations are offering dozens of free outings and lessons across various sports, including sailing, kayaking, standup paddleboarding, hiking, yoga and more. Preregistration is available online at www.wellnessliving.com/rs/event/moraine_state_park_regatta.

The regatta will also feature the inaugural Moraine Regatta 5K. Competitors of all ages can run or walk along Lake Arthur on the Sunken Garden Trail, with awards for the top male and female finishers in each age category. A portion of the race's proceeds will benefit the Moraine Preservation Fund's efforts to conserve and improve the park.Two additional races will take place on the lake during the weekend: the third annual Pittsburgh Paddlesports Championship benefitting the American Cancer Society and the seventh annual PA SurfSup (SUP) Championship.

Entertainment during the weekend will highlight various artists and organizations. The main stage will host Live at Lake Arthur 2021, featuring musical performances Saturday by the Pittsburgh Youth Choir, 2 p.m. to 3 p.m.; Pierce Dipner, 4 p.m. to 6:30 p.m.; and Sun Champs, 7 p.m. to 10 p.m. On Sunday, Time Tested will perform from 3 p.m. to 6 p.m.A fireworks finale by Kellner's Fireworks will cap off Saturday's festivities about 9 p.m.On Sunday afternoon, the Oliver Outdoor Native Butterfly Release returns to the regatta. Attendees can buy a monarch butterfly in tribute to a loved one and release it during the event, culminating in the mass release of hundreds of butterflies. Butterflies are available for purchase at www.eventbrite.com/e/butterfly-release-tickets-157796388245.The event schedule is available online at www.morainestateparkregatta.org/schedule

The regatta also includes other features:■ Marketplace of Vendors: More than 60 local food, craft and business vendors will sell products and promote their services. Highmark BCBS/AHN LifeFlight will be on-site to showcase a LifeFlight helicopter.■ Cornhole tournament: The first cornhole tournament in the regatta's history will take place starting at 11 a.m. Sunday. Teams of two will compete in a single-elimination competition, with a prize for the winners. Registration is available at www.eventbrite.com/e/cornhole-tournament-tickets-161008700357 for $15 per team.■ Children's activities: The regatta features several activities for children and families, including a scavenger hunt, yard games, arts and crafts; face-painting vendors; a family hike, provided by HikerBabes at 6 p.m. Friday; and rides around the South Shore on Bob's CHS Express barrel train.

■ Car cruise: Saturday and Sunday at the regatta will feature a car cruise from noon to 4 p.m. Attendees can check out vintage, classic and customized vehicles from all eras. Participation is free and the first 50 car owners each day will receive a custom Moraine State Park Regatta Dash Plaque.■ Grist Mill baker: Stan Malecki, the Grist Mill baker at McConnell's Mill Park, will present “A Taste of History.” The 30-minute programs will teach about the history and techniques of grist mill baking, including samples of authentic honey butter bread made through traditional methods. Malecki will provide these classes from 4 p.m. to 8 p.m. Friday and from 11 a.m. to 2 p.m. Saturday and Sunday.

A butterfly release, at left, is a sight to see and will take place Sunday afternoon at the 22nd annual Moraine State Park Regatta.

Visitors can enjoy live music from the main stage at the Moraine State Park Regatta this Saturday and Sunday.

Free yoga classes throughout the weekend will be provided by various community partners.

A car cruise will be part of the annual Moraine State Park Regatta. The cruise hours are noon to 4 p.m. Saturday and Sunday. Dash plaques will go to the first 50 cars on each day.

Free recreational activities are available with provided equipment at the annual Moraine State Park Regatta, but registration in advance on the regatta website is encouraged. Sailing, kayaking and stand-up paddleboarding will all be offered throughout the weekend.