Gintama Season 1 Episode 115 Episode 115 - "Summer Vacation is the Most Fun Right Before It Begins"

The Odd Jobs takes a gig working as lifeguards on the beach. Gintoki and Shinpachi ignore their work and focus on staring at the girls. Kagura immediately finds a suspicious person named Kamenashi, who is dressed like a turtle, and beats him up. Gintoki and the group find out that Kamenashi has been secretly filming girls in swimsuits. Kamenashi desperately makes excuses, but Gintoki and the others aren't fooled. Kamenashi then says he'll invite them to Ryugu Palace if they let him go.