The party was held at Sta. Elena Golf and Country Estate in Sta. Rosa, Laguna.
According to event stylist Dianne Khu, Pauleen asked her to come up with a "fun, festive theme with a pool party vibe."
Diane added, "Carnival was on top of the list, so it's no brainer to do a #boardwalk baby theme! Amusement park and nautical elements combined!"
Different booths and inflatables by Kael's Adventure Land were set up all over the venue.
Everyone enjoyed the chill pool party, including the performances of Clowning Around Team.
Present were Danica Sotto, hubby Marc Pingris, and their kids Michael and Caela.
Paulina Sotto was all smiles with sisters Danica and Talitha.
Baby Tali's Ninong Alden Richards made time for the party.
Sherilyn Reyes-Tan attended with her children, Lorenz (second from left) and Eia (third from left).
She arrived together with Camille Prats with husband VJ Yambao (second from right), and their son Nathan (third from right) and daughter Nala (right).
The party doubled as Pauleen's celebration of her birthday as well.
She turned 30 on November 10.