| name | image | Average flow (m³/s) | basin (m²) | Height (m) | origin location | mouth location | Length (m) | latitude (°) | longitude (°) | canyon | Map |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Małka Arda (rzeka) |  | Arda | 40,800 | 41.6166666667 | 25.0666666667 | Map | |||||
| Perperek (rzeka) | 220,000,000 | Arda | 44,000 | 41.6500000000 | 25.5333333333 | Map | |||||
| Krumovitsa |  | 671,000,000 | Arda | 58,000 | 41.6166666667 | 25.7000000000 | Map | ||||
| Varbitsa (river) |  | 22 | 1,203,000,064 | Arda | 98,000 | 41.4700000000 | 25.3719000000 | Map |