Has the day come for Gabrielle Union and Dwayne Wade to finally say 'I do'?

It sure appears so.

Union took to Twitter today to profess her happiness over the beautiful day, smiling for a trio of waterside pictures. And the "Being Mary Jane" actress did more than just hint at the wedding, writing:

"Happy... Got my Luther playin... There's a #BeingMaryJane marathon on #BET, my #nebraska #huskers play today... All my loved ones are in town... Today is a good day... I must say I'm feeling blessed and humbled and just freakin happy... Let's go!!!"

She ended her message with a special hashtag: #thewadeunion.

Wade also tweeted a message to celebrate the big day, sharing a photo of the bride-to-be with Wade's three sons, who he calls the "SQUAD."

Union and Dwayne will reportedly be getting hitched in Miami. According to TMZ, the couple is set to marry in a castle.

The website reports that "Chateau Artisan," which is surrounded by a moat, will host the wedding festivities.

The scenic venue is also where Birdman filmed his 2010 music video for "Fire Flame," and is enclosed by wrought iron gates and wooden privacy doors.

TMZ reports that the couple chose to go with a moated castle in order to keep the ceremony as private as possible.

The 19,000 square foot fortress sits on 14 acres and has 8 bedrooms and 7.5 baths.

It was recently reported that the couple would not allow cell phones or cameras at their wedding. TMZ even claimed that guests would be forced to sign confidentiality agreements before attending the nuptials. So details of the big day for the NBA star and actress will likely be remain private.

Keeping the wedding on their terms, the couple has shared a few photos of their own. Wade posted of picture on Instagram of him and his mother just ahead of the big day, calling his mom "his first love" and thanking God for allowing her to be a part of the special event.

The Miami Heat star also shared a picture of he and his NBA teammates, suggesting that the men may have had a little pre-wedding celebration:

"This is how I felt this morning when I woke up haaa... #dancefeverhuh #heatboys #gentlemenweekend@ud40 @mchalmers15." 

Wade also posted a touching picture with his oldest son, calling his child "amazing" and admitting his concern that the boy is happy despite "all the madness" of the wedding preparations. Wade confirmed, writing, "he said dad right now at this moment, my life is perfect."

So, it looks like congratulations are in order for the happy couple! #thewadeunion