In the first project of the Phase IV expansion, Waterfront Park and Kentucky Science Center have partnered to create an innovative outdoor experiential learning and play area: Waterfront Park PlayPort.

Paying homage to the Ohio River's cultural and industrial heritage, this 3.5-acre space features custom-built playground equipment made from repurposed construction and boat materials, creating a distinctive environment for hands-on exploration. Designed to foster creativity, collaboration, critical thinking, and imagination, PlayPort offers engaging opportunities for families to learn together. Educational signage and interactive exhibits include graphics, content explaining how the exhibits work, play prompts, and QR codes linking to videos developed by the Kentucky Science Center. These videos showcase science concepts through simple hands-on activities that families and teachers can replicate. PlayPort is an inclusive, transformative space where children of all abilities can enjoy accessible play alongside STEM-based learning.

In addition to PlayPort, the surrounding construction includes a classroom/community meeting space, restroom building, and parking lot. This project, which broke ground in October 2022 and was completed in March 2025, marks the beginning of the Phase IV expansion, with exciting additions to come.