| Undella Bay サザナミ湾 Sazanami-wan | |
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| Information about Undella Bay | |
| Region: | Unova |
| Connecting locations: | ↑North - Seaside Cave ←West - Undella Town Below water - Abyssal Ruins |
| Weather: | Normal |
| Kind: | Sea |
| Needed HM: | Surf, Dive, Strength, Flash |
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Undella Bay (Japanese: サザナミ湾 Sazanami-wan) is a location in Unova. It is the only location in Unova where the player can utilize the HM Dive and it also has an ancient, sunken temple—the Abyssal Ruins—at the bottom. The temple holds mazes that contain treasures that can be sold to a man in the villa in Undella Town.