Lowe, a 29-year-old from Dallas, proposed to Giudici, 27, in March in Thailand after playing out the beginning of their romance on television for all the world to see.
Now the big day is here and even the smallest of preparations -- getting nails done and eating a $32 omelette -- in the days leading up to the ceremony are being broadcast on social media.
Lowe kicked things off with a simple tweet musing that he was getting married in just four days time.
Both Giudici and Lowe tweeted about their numerous television appearances promoting the wedding special, including "Good Morning America," "The View," and "Jimmy Kimmel Live." But when the two arrived Thursday in California where they'll get married at the Four Seasons Resort -- The Biltmore Santa Barbara, they really starting showing off the Instagram photos.
Giudici showed off her emergency emergency kit and the cottage where they'll spend their first night as man and wife.
Lowe was more interested in taking photos of his canine-inspired groom's cake and his view during a solo breakfast where he lamented paying $32 for an omelette.
Giudici and Lowe's wedding ceremony is scheduled to air 8 p.m. EST Sunday on ABC.