Come to Dennis, walk around West Dennis Library, and have a meal at this restaurant. The unique characteristic of Marathon Seafood is serving delicious fried clams, awesome onion rings and tasty clam chowder. The staff is friendly that's what makes this place so good. Based on the visitors' opinions, the service is good. On Yelp, one of the rating agencies, this spot is rated below average.
Visited in mid-October after finding it by accident. I had the broiled seafood combo (shrimp, scallops & scrod) and husband had the fried combination platter (shrimp, scallops, scrod & whole-belly clams). We each had onion rings as well. My broiled platter was outstanding. The portions were generous, the seafood was moist, tender, and perfectly cooked, and the scallops were nice and large. The onion rings were wonderful, and my coleslaw was ideal - not too much dressing. I heard just as many compliments about the fried seafood as well. Informal, no frills surroundings. Our kind of place! If we didn't live so stinkin' far away, we would be regulars!