Yuba Lake (ユバの湖 Yuba no Mizuumi?) is a large lake at the eastern edge of Transylvania in Castlevania II: Simon's Quest. Rover Mansion sits on an island in this lake.

To get to the lake, Simon must take the Lower Road from the Aljiba Woods. When he reaches the base of the lake, he must make use of the Blue Crystal and kneel for a few seconds. A new path will be revealed to him that leads underneath the lake, which will allow him to reach Rover Mansion. There are no enemies in this new path.

Castlevania II: Simon's Quest
Characters
Protagonists
Simon Belmont
Supporting cast
Mysterious WomanFerrymanVillagersPriests
Antagonists
DraculaDeathCarmilla
Bosses
DeathCarmillaDracula
Areas
Towns
JovaAljibaVerosOldon/AndoleFetra/DoinaGhulashAlba
Mansions/Castles
Brahm's MansionBerkeley MansionBodley MansionRover MansionLaruba MansionDracula's Castle
Swamps
Belasco MarshJoma MarshDenis Marsh
Cemeteries
Camilla CemeteryStorigoi GraveyardVlad Graveyard
Rivers and Lakes
Dead RiverYuba Lake
Woods
Sadam WoodsDenis WoodsDebious WoodsAljiba WoodsDora WoodsVeros WoodsJova Woods
Bridges
North BridgeWest BridgeSouth BridgeEast Bridge
Roads
Lower RoadUta Lower Road
Others
Dabi's PathJam Wasteland/Deborah's CliffWicked Ditch
Music
Message of DarknessWithin these Castle WallsBloody TearsThe Silence of the Daylight
Dwelling of DoomMonster DanceLast BossA Requiem
Akumajō Dracula Famicom BestDracula II: Noroi no Fūin SOUNDTRACKS
Guides
Takarajimasha GuideNintendo Power GuideNES Game Atlas
Archives
BestiaryInventoryWorld Map13 CluesWalkthrough
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