Good morning, Portland.

Sweetfern Geometer, a casual fine dining restaurant with a farm-to-table menu, opens Saturday on Washington Avenue in the former Bake Maine space — its chef-owner William Justice expects strong synergy with the adjacent Mourning Cloak bakery.

The venue seats 50 and operates from 5 p.m. to 9 p.m.

Virginia Shaffer, author of Oyster Society: Adventures with the Shell-Fishly Motivated (Islandport Press), joined ARC Maine on Wednesday to celebrate National Oyster Day and share her insights into local oyster farms, raw bars and coastal communities.

Local theaters and orchestras are offering discounted or free performance tickets for young adults, with the Portland Symphony Orchestra hosting free chamber concerts at Maine breweries from Oct.

1-3 and Ogunquit Playhouse providing free first shows for residents under 30 (Maine, Massachusetts, New Hampshire). Discount programs are offered statewide.

Maine native singer Role Model will perform at Thompson’s Point in Portland on Friday in a sold-out concert and release his new album Chuck Timely and The Hourglass.

He will sign copies at the Bull Moose music store in South Portland on Saturday for 200 pre-orders.

The Portland Chamber Music Festival will run from Aug.

13 to 22 at Stevens Square Theater in Portland. The 33rd season features four programs of chamber music performed by world-class musicians & American composers marking the U.S. 250th anniversary.

Press Herald intern Charley DiAdamo raced in a relay at Ironman 70.3 Maine in Augusta on July 26 and overcame a broken elbow and lingering health challenges to finish her run under two hours - a feat that underscores her enduring commitment to the sport.

Wine Sail in Portland, Maine: Tuscany

3-5 p.m. — Maine State Pier — $150 — Embark on a scenic wine sail featuring exquisite Tuscan wines and breathtaking views of Casco Bay.