Legal Sea Foods is synonymous with ocean-going fare in the Hub, so it’s no surprise that its Massachusetts locations host the 10th annual Oyster Festival now through October 10. Enjoy special dishes—including four different kinds of fried oysters (Buffalo, barbecue, sriracha lime and BLT) and baked oysters in lobster, spinach, crab and cheese, scampi and roasted varieties—at participating restaurants, all just in time for prime oyster season. You can even wash it down with the fest’s official drink, the Deadrise, a combo of vodka, muddled cucumber, lime and grapefruit bitters. Bivalve fans can also partake in the Mollusk Mania party, featuring a raw bar of six varieties as well as four prepared appetizers, on September 23 from 1–3 p.m. at Legal Harborside in the Seaport District.