Act as a seasoned digital marketer with 5+ years of experience in content promotion. Design a step-by-step guide on how to use treasure hunts to boost blog engagement and traffic. Include [BLOG NICHE], [TARGET AUDIENCE], and [PRIZE IDEAS] as customizable variables. Detail how to structure the hunt (e.g., clues tied to blog posts, social media integration), how to incentivize participation, and how to measure success (e.g., referral traffic, time on site). Provide creative examples like '[BLOG NICHE]-themed riddles' or '[TARGET AUDIENCE]-friendly challenges.' Ensure the plan is scalable for blogs of any size.