[
  {
    "type": "overmap_terrain",
    "id": "c_cave_entrance",
    "name": "river cave entrance",
    "sym": "O",
    "color": "light_cyan",
    "see_cost": 2,
    "flags": [ "KNOWN_DOWN", "RISK_HIGH", "REQUIRES_PREDECESSOR", "RIVER", "LAKE_SHORE" ]
  },
  {
    "type": "overmap_terrain",
    "id": "river_cave_food",
    "name": "kraken food storage",
    "sym": "O",
    "color": "cyan_green",
    "see_cost": 5,
    "spawns": { "group": "GROUP_KRAKEN", "population": [ 6, 10 ], "chance": 100 }
  },
  {
    "type": "overmap_terrain",
    "id": "river_cave_nest",
    "copy-from": "river_cave_food",
    "name": "river cave nest",
    "color": "white"
  },
  {
    "type": "overmap_terrain",
    "id": "river_cave_kraken",
    "copy-from": "river_cave_food",
    "name": "kraken chamber",
    "color": "red"
  },
  {
    "type": "overmap_terrain",
    "id": "river_cave",
    "name": "river cave tunnel",
    "color": "brown",
    "see_cost": 5,
    "spawns": { "group": "GROUP_KRAKEN", "population": [ 4, 6 ], "chance": 100 },
    "flags": [ "LINEAR" ]
  }
]
