Big Thanks to Harris twins for allowing me to adopt this cache and turn it into a multi. Lovely little Jetty with great views.
Apparently designed to be wheelchair friendly for fishing although I've never seen anyone fishing from it.
Visit the Jetty and gather the following information to find the final cache.
Number of triangular checker plate panels = X Number of upright posts supporting the handrail = Y Number of legs below platform = Z
Checksum = 21
Cache is at N53 28. (Z-X) (X) (X-2) W001 56. (Y-X) (X-2) (Z-X)