It's not close to the sea but it's close to my ideal: Montrose Fish & Chippery in the foothills of the Dandenongs. Crisp, fat chips and fish that's fresh and famously fried. No wonder the queues are as formidable as the quality.
For excellent fish and chips, you cannot go past Hunky Dorys in post Melbourne. They serve not only traditional battered fish, but a range of grilled options, burgers, chips, brown rice (fantastic for the health conscious), and salads. The service is excellent and really friendly. Grab a table outside and enjoy a brilliant, very reasonably priced meal.