Seaside Cavern (PMU 6)

Seaside Cavern was a Water-type version of Tiny Grotto. It had Pokémon that introduce stat increasing moves to the player and has a total of 3 floors with a boss.

Pokémon

 * Lotad
 * Slowpoke
 * Staryu

Items

 * Seaside Key - Floor 2
 * 50 Poké (Common)
 * TinyMushroom (Uncommon)
 * Mystic Water (Uncommon)
 * Shoal Shell (Rare)
 * Water Stone (Very Rare)

Boss
Kingler  Moveset:
 * Vicegrip
 * Bubble

Misc.
Random? No Boss? Yes Weather? No Set Level? No