What activity does Nick participate in that connects him with his father?

The activity that connects Nick with his father is fly fishing. This choice reflects a shared experience that creates a bond between them, emphasizing not only a leisure activity but also a tradition that may involve lessons about patience, skill, and appreciation for nature. Fly fishing often requires a calm and thoughtful approach, enabling the two to engage in deeper conversations and strengthen their relationship through shared time outdoors.

While the other activities like playing catch, exploring nature trails, and building models could also foster connections, fly fishing is specifically marked as a significant bonding activity in many narratives. It captures not just the recreational aspect but also the emotional and educational elements that enhance their relationship. This deeper connection through fly fishing sets it apart as a unique and meaningful experience for Nick and his father.