This is the Northern Outfall Sewer Embankment (NOSE) AKA The Greenway and also partly Q22 of the Quietway cycle routes. Designed by Jospeh Bazalgette as part of the great Victorian sewerage solution this 7km route was covered over and opened as a walkway in the early 1990s as part of a green strategy. A great pedestrian and cycle route connecting Hackney Wick to Beckton and connecting with other off road local routes such as the River Lea, the Channelsea Path, the Long Wall Path and many other pathways around Beckton and the Thames.
It is open 24 hours a day and there is low level lighting along most of the Greenway and green corridors along the side that are a host to lots of interesting wildlife that you may see along the way. The Greenway is often busy with cyclists commuting and school run pedestrian traffic.
It is currently not recommended by the police that you use this area on your own in the evening whilst using your mobile phone due to a number of crimes in the area. Come with a friend or plan your trip for earlier in the day.
The posted coordinates take you to the magnificent building known as Sir Joseph Bazalgette's Cathedral, it's not actually a Cathedral though. The cache is not located here (although perhaps it passed through). You will need to solve the puzzle to calculate the coordinates to find the cache.
N soft blobs hard lumps° sausage with cracks hard lumps.(lumpy sausage + mushy with ragged edges) (soft blobs - hard lumps) smooth sausage
E (sausage with cracks - lumpy sausage - hard lumps)° (soft blobs - smooth sausage - hard lumps).(liquid - mushy with ragged edges - hard lumps) (smooth sausage x lumpy sausage) lumpy sausage