The Sea Caddy is a large cruiser vessel that makes a beeline past the Daytime starting point, following a path between Wuhu and Wedge islands. It leaves from the southeast side of Wuhu. After you unlock the balloon popping ability it will trail a large clump of balloons. The ipoint hovers above the vessel.
It carries passengers from Wedge Island to Wuhu Island and back. It gives a different description daytime, evening, and night. It docks at the Wedge Island Marina.