Before fishermen discovered the edibility of fish, they used each catch as bait for larger species, hoping in the end to hook the biggest fish of all—friendship. Cast your line with today's Groupon: for $10, you get $20 worth of seafood at Cove Clam Shack and Cafe in Mystic.

Cove Clam Shack and Cafe's menu of award-winning seafood dishes begins its journey to the plate as fresh, locally sourced items from the Shack's on-site fish market. Wednesday through Sunday, guests can slurp down bowls of Rhode Island clam chowder ($4.35), which is built upon the foundation of a clear broth that assists in locating each floating morsel or the chef's misplaced car keys. Lobster salad rolls ($14.95) team up with french fries or coleslaw to shake down pesky hunger pangs, and cod-fish sandwiches ($6.95) run victory laps across tongues in celebration of winning praise from Connecticut Magazine as the state's best fish sandwich for three consecutive years. Cove Clam Shack and Cafe's raw bar also slings oysters ($10 for six) and littleneck clams ($5 for six) prepared over a stove constructed from ice chunks.