「化石消失如同泡沫，沐浴石光一起守候」過去臺灣古生物與滅絕動物的生活痕跡，被埋沒在土地中形成化石，而在自然文化中佔有一席之地的化石，卻缺乏專職單位及相關法規推動其保育工作。
為了倡導化石與環境的保育和不隨意帶走化石，以臺灣絕跡動物為主題，透過前期的資料考究，規劃一系列的親子泡澡體驗組，藉由遇水消逝的泡澡球，隱喻滅絕動物與減少的化石，並在泡澡球內部加入化石玩具，宛如早期在河邊掏化石的體驗。趣味性的包裝，打造親子共樂的沐浴時光，球型外殼傳達泡泡的消失，結合動物們的原生長環境促進家人間的互動。沐浴後可將化石玩具放回包裝，以達到重複使用，讓親子在生活中建立化石知識及保育觀念。
沐浴石光為達到循環教育的社會回饋，藉泡澡球溶化提醒化石的消逝，提倡化石及環境保育的重要性。讓親子的沐浴時光能夠學習化石知識。
"Fossils vanish like foam, bathtime stand guard together." traces of ancient life and extinct animals in Taiwan have been buried in the ground to form fossils, which occupy a place in natural culture. However, there is a lack of dedicated units and related regulations to promote their conservation work.
In order to advocate for the conservation of fossils and the environment, and to discourage the indiscriminate removal of fossils, Taiwan's extinct animals are used as the theme. Through preliminary research, a series of parent-child bathing experience sets are planned. By using bath balls that disappear upon contact with water, the diminishing of extinct animals and fossils is metaphorically represented. Fossil toys are added inside the bath balls to simulate the experience of fossicking for fossils by the river. Interesting packaging creates a fun bathing time for parents and children, with the spherical shell conveying the disappearance of bubbles and promoting interaction between family members by combining the original habitats of animals. After bathing, the fossil toys can be put back into the packaging for reuse, allowing parents and children to build fossil knowledge and conservation concepts in their daily lives.
"Bathtime" aims to achieve social feedback through circular education. By dissolving bath balls, it reminds people of the disappearance of fossils and advocates for the importance of fossil and environmental conservation. Let parents and children learn about fossils during their bathing time.
