
The Kennedy family set out to sea on Thursday to kick off Robert F. Kennedy III and Amaryllis Fox's four-day wedding extravaganza.

The happy couple was seen heading down to the Hyannis Yacht Club that morning, bringing along sunscreen, water and a few dozen Honey Dew doughnuts.

They were joined by Fox's daughter Zoe, 8, and her cousin Catherine for the outing, before joining up with approximately 20 other wedding guests.

Scroll down for videos

Family wedding: Robert Kennedy III kicked off his four-day wedding celebration with a family boat trip on Thursday (Robert III and his bride-to-be Amaryllis Fox with her daughter Zoe on far right)

Happy couple: Amaryllis and Bobby began welcoming guests to the compound on Thursday for their wedding celebration (couple above at the compound )

Provisions: Bobby III brought along a few dozen doughnuts along with sunscreen and water for the trip

Family affair: Among those who joined the bride-to-be and her future groom on the trip were Aidan Kennedy (far left) and some of the Shriver children

The Calvary: Designer Frederick Spreadlove (above in jeans and a green shirt) brought along his dog as Amaryllis' friends and family also joined the group

Family love: Aidan Kenendy, the groom's younger brother, warmly greeted the other guests as they arrived on Thursday

Party time: Robert F Kennedy Jr posted a photo on Wednesday of his son's wedding party (fron row l to r: Bobby, Amaryllis, Cheryl Hines and Robert Jr; second row: Paul Mogan, Kick Kennedy, Frederick Spreadlove and David Whitestone):

Among those spotted with the soon-to-be-wed couple were Bobby's little brother Aidan, his friend Frederick Spendlove, and some of thew younger Shrivers.

The group then piled on to the dockmaster's very large pontoon and headed out to their vessel.

Ted Kennedy's sailboat Mya is still kept in Hyannis, and his son Ted Jr was also along for the outing on Thursday.

He joined a group in the second pontoon that included Anthony Shriver and some of the Skakel family.

Once back on dry land that afternoon, the group headed the mile back to the Kennedy Compound to prepare for the evening's party.

Bobby played host to a number of his friends including back at the house, where guests enjoyed light fare and heavy drinks.

It was the younger crowd who was seen hanging outside on Thursday evening, while the adults stayed inside.

That was it for the night, with the group opting for a low-key evening after an eventful few days.

On Wednesday, Bobby and Amaryllis were photographed marching through the streets of the town with Zoe before heading back to the family's compound on the Nantucket sound.

Mother and daughter then joined their in-laws for the annual Kennedy family photo, posing alongside Bobby in the group shot.

Loading on: Guests dressed in a decidedly ecclectic array of clothing for the trip to sea on Thursday

Mother and daughter: Amaryllis and her 8-year-old daughter Zoe head onto the pontoon that will take them to the baot

Family: Aidan greets his stepsister Catherine Young on Thursday, with the pair's parents opting to skip the trip

Second round: The second group of Kennedy family members prepares to head to the boat

Voyage part two: A second pontoon trip was needed to bring out the adults, including Ted Kennedy Jr.

Patriarch: Ted Kennedy Jr was spotted walking down the dock at the Hyannis Yacht Club, where his father's boat Mya has long been moored

Difficult blow: Ted Jr had his leg amputated when he was just 12 due to bone cancer

Pack and play: The young children leave the boot after enjoying a swim in the ocean

The two will now spend a few more days with the Kennedys before Amaryllis and Bobby say their vows in a ceremony that will be held at the family compound.

The Kennedy family made a very strong showing at the annual Hyannisport parade on Wednesday, with almost all of matriarch Ethel Kennedy's nine surviving children making their way to Massachusetts for the Fourth.

Robert F. Kennedy Jr was there with his third wife Cheryl Hines, with the two uin charge of driving the vehicle which housed the family's float this year.

Hines' daughter Catherine Young was among those sitting atop the float, where she was joined by Courtney Kennedy's daughter Saorsie, Kerry Kennedy's daughters Mariah and Mackenzie and Max Kennedy's daughter Noah.

Those four young woman joined their grandmother Ethel in protesting the Trump administration's zero tolerance policy.

Letting loose: Bobby was later seen at his backyard fete on Thursday night with friends and cousins

Blue jean baby: Bobby was seen sipping a beverage that was mixed with an energy drink at the event (above on left)

Guests: Bobby (above) prepared drinks throughout the night while Amaryllis did not seem to imbibe ahead of her big day

Friends and family: Amaryllis kept things casual in a pair of running shorts and a loose camisole over her bathing suit (above)

Guests: Among those in attendance were Cara Cuomo (above in red dress) and David Elliot (above in striped shirt and sunglasses), a producer who has developed shows for NBC, HBO and Sony

Kids hang: Zoe and her cousin stayed in their bathing suits throughout the day (above)

The family launched a very direct attack on the administration - and First Lady Melania Trump in particular - by breaking out some paint and and green jackets, on which they each wrote: 'I Really Do Care.'

Ethel and the girls then wore the jackets at the parade.

Kerry, who was previously married to New York governor Andrew Cuomo, posted a photo of the finished jackets on Tuesday night.

'Happy Fourth of July! Join our chain fast 24 hours over 24 days for 2400 children taken from their families,' wrote Kerry in her post, tagging her mother, Julia Roberts and Alec Baldwin.

She then promoted the families new charitable initiative Break Breads Not Families, which is being supported by the Robert F. Kennedy Human Rights organization.

Kerry currently heads the organization.

Puffing away: Bobby enjoys a cigarette while his chatting with Eliot at the party on Thursday

Photo time: Robert Kennedy Jr's godson David Whitestone (above in blue) heads to take a group photo with the wedding party on Thursday

Kennedy kalisthenics: Finbar Kennedy stretches while his little brother Aidan chats with guests at the event

Family talk: Cara Cuomo (in black hat) chats with her cousin Bobby and his bride-to-be on Thursday

Kerry was joined by her friend Marco Gualtieri for the holiday, who is a member on the board of the Robert F. Center for Justice and Human Rights.

He and his friends also donned the jackets, prompting Kerry's daughter Mariah Cuomo to write: 'Marco love you baby!'

Breaking Bread Not Families is now seeking donation for its cause as the family fights back against the executive orders being put in place by President Trump.

'The Trump administration’s "zero tolerance" immigration policy has set off a humanitarian crisis along the U.S./Mexico border, leaving 2,400 children unjustly separated from their parents,' reads the homepage for the movement.

'In response to criticism from across the political spectrum, the administration has moved toward the indefinite detention of families. This "solution" is not only immoral, it is also illegal under U.S. and international law.'

It later states: 'Protestors, including elected officials, influencers, and the Kennedy family, will fast for 24 hours, for 24 days, in honor of the 2,400 children separated from their parents.'

The Kennedy clan was joined by another American royal earlier in the week - Julia Roberts.

Robert Jr shared a photo of the Oscar winner on Saturday, writing: 'My mom and Rory en route for a sail with Julia Roberts and her daughter, Hazel.'

The picture showed Rory driving one of the family's ubiquitous golf carts with Ethel, 90, riding shotgun and and Julia joining daughter Hazel in the back of the cart.

It is unclear if Julia was paying a quick visit and would be staying through the holiday or heading back home with her daughter.

It will be an extra-special Fourth for the Kennedys this year due to the wedding of Bobby and Amarylis.

The aspiring filmmaker is the oldest son of Robert F. Kennedy Jr and his first wife, Emily Ruth Black.

Bobby's parents divorced after his father's then-girlfriend Mary Richardson became pregnant with son Conor.

It will be the first marriage for Bobby, 33, who will be gaining a wife and a new daughter when he walks down the aisle on July 7.

Fox, 37, gave birth to her daughter, now 8, shortly before leaving her post at the CIA.

She became a clandestine agent for the intelligence group after creating an algorithm that predicted which cities were most likely to be hit by terrorist attacks.