Sydney Sweeney, More Celebs Go for Stroll in Venice on Morning of Wedding

The rain in Venice brought out a beautiful sight Friday morning … not a rainbow, but the gorgeous faces of Hollywood’s A-list instead.

A few of the guests who will attend Jeff and Lauren‘s impending nuptials went for a stroll along the canals in Venice … including Sydney Sweeneywho flashed some skin in a leggy and low-cut black dress.

Leonardo DiCaprio‘s longtime partner, Vittoria Cerettiproved a rose by any other name is just as sweet … even the roses on her dress — a sweet addition to her skintight gown.

Orlando Bloom, Khloé Kardashian, Kris Jenner and Tommy Hilfiger were among just a few of the stars who got an early start to their day after a stormy evening last night.

As we told you … the wedding guests were completely soaked late Thursday night — getting caught in a rainstorm after the wedding rehearsal while lightning lit up the sky.