The following information is based on extracts from the Go Fly fishing UK website.
The UK has some of the most famous and best trout fly fishing locations in the world ranging from the classic English chalk streams such as the River Test, Itchen, Wylye, Avon and Kennet in the South of England quite near to London, to the very special limestone rivers River Wharfe, Ure and Aire in the Yorkshire Dales.
In the Midlands there are excellent trout fly fishing locations to the north, south, east and west of the Birmingham area. These include to the north the rivers and lakes of Derbyshire (mentioned above) and the famous East Midlands reservoirs – Rutland Water and Grafham Water.
To the south are the Cotswolds which offers the charming River Coln flowing through picture postcard perfect English countryside, as well as other excellent Trout lake and river locations, and to the west is Wales where fabulous fly fishing is to be had.
In the South West of England the rivers of Devon provide some very enjoyable fly fishing for Brown Trout, Sea Trout and Salmon.
Scotland is most famous for its Atlantic Salmon fishing but there are also many river and loch (lake) locations providing superb fly fishing for Brown Trout and Sea Trout.
Excellent still water fly fishing is also available in the mountain tarns (small mountain lakes) for wild Brown Trout and stocked lakes and reservoirs for Brown and Rainbow Trout.
Most of the rivers hold good stocks of good size Grayling.
The rivers in some locations provide an opportunity for the fly fisher to try for a Salmon or Sea Trout and more exotic species such as Shad or Char in certain rivers and lakes.
The main UK Brown Trout fly fishing season runs from late March through to early October. There are local variations and definite best times for most waters. Large numbers of Brown Trout are caught in the October to mid March autumn/winter season while anglers are usually targeting the Grayling.
The availability of excellent Grayling river fishing and stocked Rainbow Trout lake fishing means that very good fly fishing is available all year round in most parts of the UK.
On the Hampshire Chalk Streams you can catch fish on a dry fly most days even in the middle of winter. While the late April to late June spring season brings top class dry fly fishing so does the late September to late November autumn season.
Throughout the UK the best fly hatches tend to be in the spring and the autumn but very good fly fishing options are available in the UK no matter how warm or cold the weather. If the flies are not hatching then fishing nymphs will usually bring good sport.
For experienced fishing visitors to the UK or for novices of all ages taking up the sport, it is strongly recommended to engage the services of a reliable fishing instructor/guide so as to maximise your enjoyment and chances of successfully hooking your fish of a lifetime.