Jacques Cousteau's lunchbox is a highly sought-after piece of memorabilia, not for its value as a piece of oceanographic nostalgia, but for the portal to the underwater Bacchanalia contained within. Doggie paddle to oceanographic dining delights with today's Groupon: for $20, you get $40 worth of fresh seafood and innovative globally inspired cuisine at Marker 32.

Named one of Jacksonville magazine's Top 25 Restaurants in 2009, Marker 32, nestled across the Intracoastal Waterway from San Pablo Island, serves up dazzling sea fruits on the waterfront for optimal reflection and potential mermaid visitations. Start an elegant evening with an order of cracked conch served with a spicy red-pepper aioli ($10), or opt for a mouthful of the Atlantic with oysters on the half shell ($7), or broiled with bacon, spinach, and sundried tomatoes ($7). With the opening ceremonies slurped from their handsome shells, customers may graduate to the main course, such as seared scallops served over creamy grits with a red-wine and mushroom gravy ($18), or caked blue crabs with a caper dill aioli, cozily nestled on a scenic platescape of steamed spinach and new potatoes ($19). In addition to a selection of Southern-style fried seafood, Marker 32 also offers landfare for the fishophobe in your group, like a bone-in pork chop, with butter beans and poblano-cheddar potatoes ($19), or the white-bean ravioli, with roast corn, bacon, and wild mushroom sauce ($13).

The upscale eatery boasts a warm and elegant interior complete with plush wraparound booths large enough to accommodate triple dates or meetings of the astronaut aspirants club, and the waterfront location offers picturesque views of the adjacent waterway. As such, it is an ideal location to celebrate your life's next milestone such as graduating from knitting school or successfully making it through croquet camp unscathed.