# Underwater Encounters (Levels 11—20) *Source: Xanathar's Guide to Everything p. 109* **Underwater Encounters (Levels 11—20)** `dice: [](underwater-encounters-levels-1120-xge.md#^underwater-encounters-levels-1120)` | dice: d100 | Encounter | |------------|-----------| | 01-10 | 1 [sahuagin baron](/Rules/Source/bestiary/fiend/sahuagin-baron-xmm.md) with `dice:1d4\|noform\|noparens\|avg` (`1d4`) [sahuagin priestesses](/Rules/Source/bestiary/fiend/sahuagin-priest-xmm.md) and `dice:2d10\|noform\|noparens\|avg` (`2d10`) [sahuagin](/Rules/Source/bestiary/fiend/sahuagin-warrior-xmm.md) | | 11-35 | `dice:1d10\|noform\|noparens\|avg` (`1d10`) [killer whales](/Rules/Source/bestiary/beast/killer-whale-xmm.md) | | 36-40 | A ghost ship passing overhead, containing `dice:2d6+10\|noform\|noparens\|avg` (`2d6 + 10`) [ghosts](/Rules/Source/bestiary/undead/ghost-xmm.md) | | 41-60 | `dice:1d6\|noform\|noparens\|avg` (`1d6`) [giant sharks](/Rules/Source/bestiary/beast/giant-shark-xmm.md) | | 61-65 | A 1-mile-radius sphere of effervescent water that allows air-breathing creatures to breathe water while in the sphere | | 66-75 | `dice:1d10\|noform\|noparens\|avg` (`1d10`) [water elementals](/Rules/Source/bestiary/elemental/water-elemental-xmm.md) | | 76-80 | A shimmering, blue-green portal to the Elemental Plane of Water | | 81-90 | `dice:1d4\|noform\|noparens\|avg` (`1d4`) [marids](/Rules/Source/bestiary/elemental/marid-xmm.md) | | 91-96 | `dice:1d3\|noform\|noparens\|avg` (`1d3`) [storm giants](/Rules/Source/bestiary/giant/storm-giant-xmm.md) | | 97-99 | 1 [dragon turtle](/Rules/Source/bestiary/dragon/dragon-turtle-xmm.md) | | 00 | 1 [kraken](/Rules/Source/bestiary/monstrosity/kraken-xmm.md) | ^underwater-encounters-levels-1120