Naples Island is a charming, seaside residential community in Alamitos Bay, known for its canals (and its gondoliers).

To be more specific, this is where The Colonnade (a short street which is basically an extension of Ravenna Drive) meets the canal.

It's just a short walk south of the Naples fountain, where they filmed the accident scene with the dead bicyclist.

At the south end of The Colonnade, there's a small grassy park. Deb & Quinn are walking next to that park, on the sidewalk that runs along the outer edge of the island, next to the canal.

To reach this spot, from 2nd Street (the main street that crosses the island), just turn south on Ravenna Drive, drive around the fountain, and continue south until the end of the street, where you'll find the park and the canal.

(The homes seen across the canal are on a smaller island called Treasure Island.)

They've shot before on Naples Island, but never on this inner island or near the canals.  Before, they stuck to Mother's Beach and Marine Park, on the northeast tip of the larger island, where they filmed several scenes, including the yoga class scene this season.

I shot the photos below in 2013:

 

A.  Naples Island is one of my favorite spots.  So there was no way I wouldn't recognize it on screen.