'PlivaTri' is a floating triangular pavilion anchored off the coast of Rijeka, conceived as a modern-day temple in the sea. Designed to counter the lack of comfortable public beach space, it invites visitors into a sensory dialogue with the water, city, and port. Its geometric form contrasts the organic flow of the Adriatic, while its open centre and surrounding walkway offer spaces for swimming, lounging, or gathering in reflection. Built using sustainable techniques like 'Yakisugi wood charring', and constructed from recycled gallons and ropes, 'PlivaTri' merges environmental consciousness with Rijeka’s industrial heritage. As the sun moves and the wind stirs the ropes the pavilion becomes a living structure, shifting in mood and lighting throughout the day. More than a platform for play or pause, 'PlivaTri' is an invitation to reimagine the edge between land and sea.