Candy Candy: Candy's Summer Vacation (1978)

Original title: キャンディ・キャンディ キャンディの夏休み

As the long-awaited summer holidays begin, Candy and her friends go hiking in the mountains. However, a heavy rainstorm interrupts their leisure, making them hide in the forest. After the rain has stopped, the friends are ready to proceed, but Candy gets herself into some serious trouble when she encounters a cute bear cub.