156화: 수영복 고르기, 여관 경영, 그리고 위기에 처한 마츠자카

156

The school organizes a visit to the summer school for 3 days. After the students reach the island, the principal takes the boys for a swim. While swimming in the water, the principal comes up with a competition of staying in the water for a longer time. Most of the children give up and leave, but Shin-chan and the principal stay back and later, fall sick. (Source: TVDB)