The first few will take you along Marsh Lane then you will head on to the river bank, through the footpaths back to the marina.
After finding cache number 7, head straight ahead and then left through the garden, this is a public footpath but due to the fact that it is private land and there being the other existing 'puzzle' caches in the area, it seems like a long walk to cache number 8.
You will need a ladder up to about 2m or a friend who has some sturdy shoulders for one of the later cache hides.