第 156 集: 挑選泳裝、經營旅館，以及松坂面臨危機

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)