I grew up in Brazil, where beach kiosks are part of everyday life. At night, however, these spaces often feel inactive due to poor light distribution. Ritmo reinterprets lighting in these kiosks through the adaptive reuse of discarded PET bottles to modify an outdated lighting condition. Cut bottle segments are reorganized into repeating modules and assembled with fishing line, materials tied to the coastal context. Designed to attach to existing bulbs without replacing infrastructure, the system transforms poorly distributed light into a controlled glow that expands usable illumination around kiosks. Beyond improving light quality and reach, the project aims to reactivate the beach at night as a welcoming gathering space, encouraging people to return to the shore after sunset. The repeating wave geometry echoes the rhythm of Brazilian culture the project seeks to extend.