In this 25th lesson of PSCD for Year 2 students, the focus is on enjoying summer holidays safely and responsibly. Activities suggested include swimming, attending fun parks, and watching sports events, with an emphasis on safety measures such as using sunscreen, wearing hats, staying hydrated, and being cautious on roads when using bicycles or skateboards. Additionally, students are encouraged to attend shows or concerts organized by local bands, with reminders on being careful not to damage property and ensuring personal safety.