Monument Valley Tourism Map App

I want a straightforward mobile app that helps Monument Valley visitors explore the area through an interactive map filled with verified points of interest. The goal is pure tourism promotion: let travelers open the app, see where they are, tap a marker, and instantly learn why that spot matters—photo ideas, short facts, opening hours, and basic logistics.

Core requirements
• Native or cross-platform build that runs smoothly on recent iOS and Android versions.
• Zoomable, GPS-enabled map displaying all major formations, trailheads, viewpoints, and visitor services.
• Touching a marker reveals a clean info card with images, text, and external links if needed.
• Simple search / filter so users can find “sunrise views,” “campgrounds,” or “restrooms” quickly.
• Remote data file or lightweight CMS so I can add or edit points without issuing a full app update.

Nice-to-have (but not mandatory)
Future expansion into itinerary planning or guided-tour audio is possible, so structuring the code for extra modules would be appreciated.

Deliverables
1. Working APK & iOS build ready for TestFlight or similar.
2. Source code with clear instructions for local build.
3. One-page admin guide showing how to add/edit map data.

I can provide all content (text, photos, coordinates); you focus on app architecture, UI/UX, and map logic. If you’ve built tourism or mapping apps before, please share a link or quick demo when you apply.