Fifteen of the caches are at the coordinates given for them. You need to record the number inside the lid of each cache to find the coordinates to a 16th cache (GC6NN4W) that contains a special geocoin for the FTF, featuring something else that Island Bay is famous for.
The coordinates for the 16th cache are South ABo CD.EFG East HIJo KL.MNO, where A is the number inside the lid of River Roads #1 – Dee Street, B is the number inside the lid of River Roads #2 – Tamar Street and so on up to O, which is inside the lid of River Roads #15 – Severn Street.
Mersey Street
Mersey Street is named after the River Mersey in the north-west of England. Its name is derived from the Anglo-Saxon language and translates as "boundary river". The river may have been the border between the ancient kingdoms of Mercia and Northumbria and for centuries it formed part of the boundary between the historic counties of Lancashire and Cheshire.
The start of the Mersey is at the confluence of the River Tame and River Goyt in Stockport. It flows westwards through the suburban areas of south Manchester, then into the Manchester Ship Canal at Irlam, becoming a part of the canal and maintaining the canal's water levels. After 6.5 kilometres (4.0 mi) the river exits the canal flowing towards Warrington where the river widens before it then narrows as it passes between the towns of Runcorn and Widnes.
From Runcorn the river widens into a large estuary, which is 3 miles (4.8 km) wide at its widest point near Ellesmere Port. The course of the river then heads north as the estuary narrows between Liverpool and Birkenhead on the Wirral Peninsula to the west and empties into Liverpool Bay. In total the river flows 70.33 miles or 113 km.
The river gave its name to Merseybeat, developed by bands from Liverpool, notably the Beatles. In 1965 it was the subject of the top-ten hit single "Ferry Cross the Mersey" by Gerry and the Pacemakers.
The cache
This is a straightforward park ‘n’ grab, but is in a residential area near a school, so please respect the residents’ privacy and be very discreet, especially during school hours. It’s on public land, so there’s no need to enter any private property or leave the pavement. Bring your own pen or pencil.
You are looking for a black camoed plastic container. Please replace it exactly as you found it and do please log a DNF if you can’t find it. There’s no shame in a DNF! This is particularly important, as this is a series of caches in which all need to be active for finders to locate the final cache.