In Newport Beach, as in many other gondola locations,
it's tradition for couples to kiss under every bridge.
As a habit I remind people that:
"You don't need the bridges, they're only there to remind you.
When you start needing the bridges - that's when you need to come back and see us".
Here's a photo of a couple who probably didn't need the bridge they were approaching. Either that or they wanted to be sure that by the time they went under it, they'd be kissing.
photo taken from post "The View from the Bridge"
with Stefano rowing in his mega-stripes
(which I will steal one day).