Roaring-Sea Caves

16 species to catch in 1 area of this location, across 2 game versions.

Data from The Crown Tundra Shield only: exact levels and the encounter rate for each Pokémon.

as a wanderer

visible on the map

visible on water

Conditional slots 42 for 6 species — time of day, weather, radio and other switches

The game keeps these slots separate from the base ones. Condition sets exclude each other (it cannot be morning and night at once), and the source does not say whether a condition adds a slot or replaces the whole table — so we list them row by row instead of adding them to the rate on the tile.

Pokémon	Conditions	Level	Rate
Magikarp	weather: normal	60–65	25%
	weather: overcast	60–65	25%
	weather: rain	60–65	25%
	weather: thunderstorm	60–65	25%
	weather: intense sun	60–65	25%
	weather: fog	60–65	25%
	weather: snow	60–65	20%
	weather: snowstorm	60–65	20%
Kabuto	weather: normal	60–65	24%
	weather: overcast	60–65	24%
	weather: rain	60–65	24%
	weather: thunderstorm	60–65	24%
	weather: intense sun	60–65	24%
	weather: fog	60–65	24%
	weather: snow	60–65	20%
	weather: snowstorm	60–65	20%
Barboach	weather: normal	60–65	25%
	weather: overcast	60–65	25%
	weather: rain	60–65	25%
	weather: thunderstorm	60–65	25%
	weather: intense sun	60–65	25%
	weather: fog	60–65	25%
	weather: snow	60–65	20%
	weather: snowstorm	60–65	20%
Feebas	weather: normal	60–65	1%
	weather: overcast	60–65	1%
	weather: rain	60–65	1%
	weather: thunderstorm	60–65	1%
	weather: intense sun	60–65	1%
	weather: fog	60–65	1%
	weather: snow	60–65	1%
	weather: snowstorm	60–65	1%
Vanillish	weather: snow	60–65	19%
	weather: snowstorm	60–65	19%
Basculin (Blue Striped)	weather: normal	60–65	25%
	weather: overcast	60–65	25%
	weather: rain	60–65	25%
	weather: thunderstorm	60–65	25%
	weather: intense sun	60–65	25%
	weather: fog	60–65	25%
	weather: snow	60–65	20%
	weather: snowstorm	60–65	20%