After properly cooking a lobster, its once-brown exoskeleton turns bright red, letting chefs know that it's both ready to serve and profoundly embarrassed for showing up without pants. Make a meal of deliciously mortified seafood with today's Groupon: for $24, you get a Summer Shellfish Grill Pack, including two lobster tails, two king-crab clusters, two shrimp skewers, two stuffed clams, and 2 pounds of mussels (a $39.99 value) at Big Y. This Groupon is valid at all Big Y locations—throughout Massachusetts and Connecticut—and requires a Big Y Express Card. Existing members should provide their card info upon purchase and the offer will be automatically uploaded to existing cards by June 10. New members will receive cards by mail.

Big Y has dedicated 75 years to stocking its shelves with first-rate foodstuffs. The Summer Shellfish Grill Pack indulges maritime appetites with a towering feast of coldwater favorites that spotlights succulent duos of fresh lobster tails and clusters of king crab. Grill masters can don specially engineered flavor-viewing goggles when searing 20 tasty shrimp on a pair of skewers, rotating them until they burst with glorious beams of succulent radiance. Rounding out the meal is 2 pounds of mouthwatering mussels and a duo of stuffed clams, ideal for sharing with a sweetheart or for pacifying spurned sea captains. A Big Y Express Card is required for this deal, and shoppers can enroll at no additional cost. Newly minted members are granted access to weekly savings, discounts at local events, and turbo-speed checkout conveyor belts.