Hoar Oak Water is a moorland tributary of the East Lyn River in Exmoor, Somerset, England.
| Hoar Oak Water | |
|---|---|
 The Hoar Oak waterfalls running into Watersmeet | |
| Location | |
| Country | England |
| County | Somerset, Devon |
| Region | Exmoor |
| Physical characteristics | |
| Source | Hoarok Hill |
| • location | Somerset, England |
| • coordinates | 51°10′06″N 3°48′11″W / 51.16833°N 3.80306°W |
| • elevation | 475 ft (145 m) |
| Mouth | East Lyn River |
• location | Watersmeet, Devon, England |
• coordinates | 51°13′24″N 3°47′59″W / 51.22333°N 3.79972°W |
It rises at Hoaroak Hill in the Chains geological site and flows to Watersmeet in the East Lyn Valley in Devon.[1]