A Sturdy Walk is a series of 12 caches forming a circular walk of about 4 miles placed to coincide with the 2008 Dreaming Spires Cache Bash at Sturdys Castle. This is a family friendly walk (although you may struggle with a buggy in some parts) with not too much in the way of hills and roads, and no Micro's 
.
In the cache you will find a letter and a number which you should take note of and use it to help you find the Bonus cache.
From No 9 find the gap in the hedgerow and continue in a northeast direction across more fields until you reach National Cycle Route 5 again.
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