A series of caches based around a common feature. Find the first
six and you may go for a bonus seventh. Each of the first six has a
number on the underside of the lid, you will need this number to
find the seventh.
The above coordinates are not the cache location, solve the
riddle below and you will know where to look.
Towards the source is where your ultimately bound, the bonus
that is. So the answer to this cache will be found there.
Cache is a 1.2l systema.
[riddle] n punatr bs ivrj znl uryc lbh fbyir guvf
[cache] Va gur zvqqyr