Kourtney's sister Khloé Kardashian, 37, posted photos on Instagram Saturday of the boat ride over to the Italian fishing village of San Fruttuoso and the picturesque table settings at the lunch. The tables were draped with blue and white pattered tablecloths and topped with white floral centerpieces and lemons.
Barker's children Alabama and Landon — whom he shares with ex-wife Shanna Moakler — also attended the lunch ahead of the nuptials that will take place at L'Olivetta, a villa owned by Dolce & Gabbana in Portofino, Italy.
Alabama, 16, posted a video of her cacio e pepe pasta and showed off the spread of food that included focaccia bread and fruit. Landon, 18, shared photos with sister Atiana de la Hoya, in one of which he sipped a red drink.
San Fruttuoso sits on the slopes of the Portofino mountain and can only be reached only by sea or on foot through the paths of the Portofino Park. Khloé traveled by boat to her sister's pre-wedding lunch and displayed her brown, off-the-shoulder Dolce and Gabbana minidress in photos taken on the yacht. Khloé paired the dress with thigh-high brown stiletto boots.
"La Dolce Vita," Khloé captioned a series of Instagram photos.
Khloé also showed off her look for the lunch in another batch of images. "Kylie knows my angles," the Good American founder captioned the shots, referring to her 24-year-old sister.
Never miss a story — sign up for PEOPLE's free daily newsletter to stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories.
According to a source, Kourtney, 43, and Travis, 46, partook in a blessing while in San Fruttuoso. They wore all black Dolce and Gabbana outfits for the occasion, Kourtney's dress from the brand's 1998 collection.
Aside from serving as a gorgeous location for the wedding festivities, San Fruttuoso boasts a rich history. The Abbey of San Fruttuoso is dedicated to Saint Fruttuoso of Tarragona, bishop and Catalan saint of the third century. Fruttuoso's ashes reside in the abbey, where they arrived after the Arab invasion of the Iberian Peninsula.
Rebuilt in the 10th century as a Benedictine monastery, the wealthy Doria family got involved with the abbey from the 13th century. The Dorias altered the abbey's structure and planned to use it as the family's burial grounds. However, in 1983, Frank and Orietta Pogson Doria Pamphilj decided to donate the entire complex to the Italian Environment Fund (FAI). A famous statue of Christ of the Abyss also sits in the abbey's bay after being placed there in 1954 and restored in the '90s.
Once the FAI restored the abbey, tourists could visit and guests have been able to rent it out for events and galas.