MANCHESTER — The Granite State Comicon is set to return to Manchester on Saturday and Sunday. This year’s celebration of comic books and pop culture also marks the 40th anniversary of the Teenage Mutant Ninja Turtles, complemented by an exclusive Batman Day celebration. The convention will span two major venues — the DoubleTree by Hilton and the SNHU Arena — showcasing an array of attractions including artist alley, autograph sessions, a gaming lounge and various vendor stalls.

Fans can look forward to a schedule packed with panels, cosplay contests and exclusive opportunities to meet and greet a variety of celebrity guests. Advance tickets cost $20 for the Friday Night Preview; $30 for Saturday; $25 for Sunday; and $45 for a Weekend Pass. Children 8 and younger enter free with a paid adult.

Prices at the door increase by $5. More info: granitestate comicon.com .

HAMPTON — The fourth annual Seacoast Oysterfest will take place at Bernie’s Beach Bar, 73 Ocean Blvd., on Sunday, starting at 1 p.m.

This all-you-can-eat event features fresh oysters from New England’s top oyster farms, alongside craft beer, cocktails and live music. Tickets are $35 and include full access to oyster sampling, with proceeds benefiting the participating oyster farms. More info: seacoast oysterfest.

com . CLAREMONT — The Claremont Brewfest and 5K, hosted by the Claremont Kiwanis Club, returns for its 10th year on Saturday at the Visitor’s Center Green. This annual event combines a compe.