The speaker suggests that the class go for an end-of-year outing to Sungei Seletar Reserve. The reserve is a beautiful nature area with picnic grounds, nature trails, and wildlife like squirrels and butterflies. Hiking the trails would be a good workout and students could see millipedes and ants. The reserve is also known for its scenic waterfall and pond, which would provide a relaxing environment. The outing would bring the class together and provide an educational experience about Singapore's flora and fauna. The best time to go would be after exams when students have more free time.