With Memorial Day gone and past, denizens of the Northern Hemisphere orient themselves again toward that most enticing and beguiling of annual phenomena: summertime.

For many of us, swept up in a nostalgic reverie of the endless days of summer camp and coolly undulating ocean waves, adventure calls like the beacon of a far-off lighthouse, with each rotation sending us deeper into our past. For others, any place with working AC will do.

This month, new concepts opening across the Northeast offer something for those in both camps, including a retro comfort food spot with Elysian disco vibes, a creative vegan omakase, and a kaiseki version of a Japanese steakhouse — all in New York City.

Famed chef François Payard debuts a new bistro on the Long Island Sound. In Boston, the Italian restaurant Serafina opens a new location; and restaurateur George Aboujaoude re-envisions his former Cafeteria space as the new Eva.

Here are six new restaurants recently open or coming soon in the Northeast.