Located at 20 Custom House Wharf on Portland’s working waterfront, The Porthole is a long-time independent favorite offering ultra-fresh Casco Bay seafood, legendary lobster rolls, burgers, and casual plates in a scenic, relaxed harbor setting with one of the largest decks in the city. The menu highlights daily catches and classic Maine flavors served with genuine waterfront warmth.

We awarded The Porthole Diamond status because its exceptional seafood freshness and consistent high-quality execution create an authentic waterfront lunch experience that simply cannot be replicated anywhere else in Portland. The laid-back yet memorable vibe is ideal for young professionals and couples craving a true local discovery with harbor views and standout plates.

~May, 2026.