To write an effective long paragraph or essay, you must begin with a solid five-sentence paragraph. Expanding it into an extended paragraph is a matter of adding details and an example to the sentences you've already written.
If you're writing about the watersports, you might mention jet skiing, scuba diving, surfing and water
After elaborating, you need to write a specific example. For example, you might write about the first time went scuba diving or jet skiing. A single, specific example.
Example of Extended Paragraph
Type your topic sentence here. Be sure to limit it.