Write a feature that follows a weekend in Del Mar through three threads: a Belly Up concert, a Torrey Pines sunset hike, and Monarch Ocean Pub sessions. Tie each thread to how local venues, outdoor spaces, and public gathering spots shape community identity, economy, and well-being. Include at least one quick historical or cultural note about each venue or space to anchor context. Use anecdotes or imagined conversations from attendees to illustrate crowd dynamics and shared experiences, then close with a reflection on what these interconnected activities say about small-town life. Keep prose vivid but concise, with clear transitions between the three threads.