The boat ride was ahead of the couples rehearsal dinner, which has seen some A-list celebrities rock up to the hotel.
According to an E! News source "Guests arrived by boat to the rehearsal dinner on the Palmetto property. There were several water taxis that took guests over around 6:30 p.m. The dinner was on the edge of the water and was outdoors. There were many string lights hanging and lit candles. Everyone was seated at long tables and the dècor was very chic and white.
"There were waiters standing greeting guests with champagne as they arrived," the source added, saying that Justin and Hailey joined the fashionably late to make their entrance. "Everyone cheered for them and they looked really happy to see everyone. Hailey and Justin both could not stop smiling."
Some celebrity guests included the likes of, Kendall Jenner, Scooter Braun, and Justine Skye, who will obviously be at the ceremony TODAY!
A source has told E! News that Hailey has been prepping at the Pellequr spa in Beverly Hills, receiving an incredibly long list of treatments ahead of her big day.
"She wanted to exfoliate the dead skin off of her body and feel smooth before travelling and getting a spray tan," the source says.
"You normally experience the effects of the lymphatic drainage and CBD massage immediately after treatment. The lymphatic massage helps to clear toxins in your body, and she wanted to jumpstart her week before her wedding to ensure she was glowing. Hailey likes the overall detox experience. It truly relaxes her and is a chance for her to clear her mind from her busy schedule and the daily hustle."
According to the source, Hailey often visits the Spa and likes to treat herself to a range of treatments including, acupuncture, massage therapy, I.V. therapy.
"She likes to make it a few [hours-long] event of wellness relaxation," the insider says.
According to E! News, Hailey will most likely also get her bod ready with her favourite Hot Pilates class in West Hollywood.
"Hailey loves that you sweat in the heated room while toning your body with resistance bands and small weights," the source continues. "She will go to class a few times per week to maintain her shape. Hailey has been visiting the studio frequently the past two months for wedding preparation."
We can't WAIT to see the photos!
EXCLUSIVE: Emotional Justin Bieber cries during church performance
