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This 30 floor dungeon is unlocked by purchasing the Serene Sea Friend Area. The HM Dive is required to enter the dungeon.

[edit] Items

• Deepseatooth (Floor 15)
• Deepseascale (Floor 25)

[edit] Enemies

Name	Type	Level	EXP	Levels seen	Recruit Rate
Wingull	Q / G	23		1-5	12.5%
Tentacool	Q / M	25		1-9	8.3%
Qwilfish	Q / M	30		1-9	6.9%
Kabuto	Q / O	28		5-13	7.2%
Corsola	Q	27		5-13	8.3%
Slowpoke	Q / N	25		6-14	12%
Horsea	Q	29		10-20	12.4%
Dragonite	C / G	24		10, 15, 20, 25	N/A
Anorith	A / O	26		14-23	8.7%
Krabby	Q	32		15-20	8%
Staryu	Q	28		15-25	8.9%
Vaporeon	Q	22		20, 30	N/A
Tentacruel	Q / M	33		21-30	-30%
Kabutops	Q / O	33		24-30	N/A
Slowbro	Q / N	27		25-30	N/A
Kingler	Q	35		25-30	N/A
Seadra	Q	20		27-30	-19%
Mantine (red only)	Q	15		30	9.5%