Structured for AI

{  "@context": "https://schema.org",  "@type": "Campground",  "@id": "https://campertunity.com/listings/campgrounds/crestline-group-campground-us",  "name": "Crestline Group Campground",  "description": "Overview We apologize, this facility is not currently taking reservations. Day use site hours are from 6 a.m. to 8 p.m. unless otherwise noted at the site. Crestline Picnic Ground is a convenient place for large families, church groups and other social gatherings of up to 50 people. The facility is a popular recreation site for visitors going to the Palomar Observatory, a world-class center of astronomical research by the California Institute of Technology in north San Diego County. Hiking, b...",  "url": "https://campertunity.com/listings/campgrounds/crestline-group-campground-us",  "image": [    "https://cdn.recreation.gov/public/2025/04/23/01/19/231949_b1bb0543-3f03-4b45-aa94-9c563c21326b_1440.jpg"  ],  "address": {    "@type": "PostalAddress",    "addressCountry": "US"  },  "amenityFeature": [    {      "@type": "LocationFeatureSpecification",      "name": "Tent Camping"    },    {      "@type": "LocationFeatureSpecification",      "name": "Tent"    },    {      "@type": "LocationFeatureSpecification",      "name": "Hiking"    },    {      "@type": "LocationFeatureSpecification",      "name": "Biking"    },    {      "@type": "LocationFeatureSpecification",      "name": "Picnicking"    },    {      "@type": "LocationFeatureSpecification",      "name": "Backpacking"    },    {      "@type": "LocationFeatureSpecification",      "name": "Stargazing"    },    {      "@type": "LocationFeatureSpecification",      "name": "Mountain"    },    {      "@type": "LocationFeatureSpecification",      "name": "Forest"    }  ],  "offers": {    "@type": "Offer",    "availability": "https://schema.org/InStock",    "priceCurrency": "USD",    "price": "0",    "priceValidUntil": "2026-11-15"  },  "priceRange": "$0+"}