To complete the requirements to log this cache you must visit both the north and the southern halves of Dartmoor. You will enter the OKEHAMPTON FIRING RANGE during your visit to Cranmere Pool.
Before you plan your visit you MUST check the DARTMOOR FIRING NOTICE.
For information see: (visit link)
Do not attempt this cache if there is firing on the Okehampton Ranges. Do not go past the Range Marker posts when the Range Flags (Red Fags) are Flying.
Do not pick up any object in the area due to the fact that it is a Military Training Area where Troops use "Blank Ammunition".
The First Dartmoor Letterbox
In 1854, in Dartmoor, England, James Perrott hid a bottle by Cranmere Pool. He included his calling card in the bottle so future visitors could contact him and leave their own calling cards. The bottle was replaced by a small tin box in 1888. Visitors now left self-addressed postcards and the next person to visit the letterbox would retrieve the postcards and mail them back from their hometown.
By April 1905 the number of visitors required a better way to track finds. The tin box was replaced with a zinc box which now included a log book. The idea, which still is seen in practice today, of using a rubber stamp was left as a suggestion in the log book, July 22, 1907, by John H. Strother.
"Reached the pool at 7.10pm, misty day with cool breeze, and would suggest that a rubber stamp, something like the post office stamps for postmarking letters or rubber stamp for putting the address at the top of a piece of notepaper be provided and kept here. If this were done it would be proof that cards posted had really come from Cranmere."
Ducks Pool Letterbox
The second letterbox was placed at Belstone Tor 40 years after the first.
44 years would pass before someone planted a third box at Ducks Pool in memory of Dartmoor author William Crossing. The letterbox and a plaque were placed at Duck's Pool in the middle of the South moor by some members of a walking club known as Dobson's Moormen and J. Malim in 1938.
122 years after the first only 15 letterboxes were found on Dartmoor. With the creation of a newsletter in 1976 the popularity grew and by the 1980s, with no proximity limits, thousands of boxes had been hidden, although only two letterboxes have the honour of being landmarks on Ordnance Survey maps.
Logging Requirements
- Upload to your log a photo of you holding a copy of the Cranmere Pool Letterbox stamp/s on a card or piece of paper, with Cranmere Pool Letterbox in the background as shown in the example...
- PLUS, upload a photo of you holding a copy of the Ducks Pool Letterbox stamp with the Ducks Pool Letterbox in the background. While there was not a stamp in Ducks Pool I will accept a rubber duck instead of the letterbox stamp.
- Your log must include both photos or risk being deleted. It is not necessary to include your face in the photos.
Dixie Gooner's FTF log has perfect examples of the photos I'm after. Please note - it is not a requirement to visit both locations in the same day - unless you are totally bonkers 
!
The waypoints for both Letterboxes are listed below - to visit both locations will involve walking accross both the North and South moors and appropriate clothing and footwear should be worn...
This special Virtual Geocache is in memory of my mum and dad, the original 'Hartshorns" with whom I spent many, many happy hours Letterboxing on Dartmoor x
Virtual Reward - 2017/2018
This Virtual Cache is part of a limited release of Virtuals created between August 24, 2017 and August 24, 2018. Only 4,000 cache owners were given the opportunity to hide a Virtual Cache. Learn more about Virtual Rewards on the Geocaching Blog.