Links and helpful guides
The Kennel Club has a 'Find a dog club' page where you can search for a club near you. You can search by breed, training, activity, seminars or location. Each club has a separate page with contact details plus a link to the website where there is one and a list of activities.
Here's a couple of links to dog clubs in Cornwall and Devon.
If you're looking for show schedules and entry forms then Agilitynet has a comprehensive list for the whole of the UK.
Most of the shows in the south west can be entered online via the South West Agility Processing (SWAP) website.
Other shows may be entered online and the entry forms to these shows will give you information on how to enter.
Rules and Regulations
Further information on Agility
This is a useful tool on the Kennel club website that will let you search for all kinds of KC shows within a given radius of your postcode.