The Sid is the smallest of the east-Devon red-sandstone rivers — Sid Valley above Sidbury and Sidmouth, a short course of around twelve miles from source to sea. The fishing is modest and sparsely covered: wild brown trout in the middle reaches above Sidbury, small numbers of sea trout (peal) in the lower river from mid-June. The catchment is small enough that the Sidmouth gauge moves visibly through a wet afternoon. Worth knowing about as a fall-back venue when the Otter is unfishable.
- Sandstone