BCM - hit the nail on the head!
You will find yourself in day to day situations where you think "can I" "shall I"
After doing an experience day - you just look at a situation and say "yes of course it can"
Eastnor and West country Honiton are the closest ones to you.
I have done both.
If you want a less structured adventure around every corner not recgnising the layout from the lap before Honiton is a good bet.
If you want a more open circuit where you will recognise your surroundings from the last lap (but equally as challenging) Go for Eastnor.
I don't recall Honiton having a water feature but it compensates through out and who knows they may have one by now.