{
  "coastal_features": {
    "sea_cave": {
      "display_name": "Sea Cave",
      "description": "Ocean-carved cavern accessible at low tide with marine ecosystems",
      "formation_type": "marine_erosion",
      "budget_impact": 2
    },
    "tidal_pool": {
      "display_name": "Tidal Pool",
      "description": "Rock depressions filled with seawater hosting unique marine life",
      "formation_type": "tidal_formation",
      "budget_impact": 1
    },
    "natural_harbor": {
      "display_name": "Natural Harbor",
      "description": "Sheltered coastal bay perfect for maritime activities and ports",
      "formation_type": "coastal_geography",
      "budget_impact": 3
    },
    "coral_reef": {
      "display_name": "Coral Reef",
      "description": "Living reef structure providing marine biodiversity and coastal protection",
      "formation_type": "biological_formation",
      "budget_impact": 2
    },
    "sea_stack": {
      "display_name": "Sea Stack",
      "description": "Isolated rocky pillar standing in shallow coastal waters",
      "formation_type": "marine_erosion",
      "budget_impact": 1
    },
    "beach_dunes": {
      "display_name": "Beach Dunes",
      "description": "Sand formations shaped by wind providing coastal protection",
      "formation_type": "aeolian_formation",
      "budget_impact": 1
    },
    "estuary": {
      "display_name": "Estuary",
      "description": "River mouth where freshwater meets saltwater creating rich ecosystems",
      "formation_type": "fluvial_marine",
      "budget_impact": 2
    },
    "blowhole": {
      "display_name": "Blowhole",
      "description": "Coastal rock formation that shoots water sprays during high waves",
      "formation_type": "marine_erosion",
      "budget_impact": 1
    }
  }
}