Caching in Cambridgeshire

In part two of our Cambridgeshire geocaching road trip our main targets were the Digital Electronics caches (set by the same geocacher as The Cambridge Positioning System which I wrote about earlier). These caches come as a pair, firstly the Theory part and then the Practical. You need to solve the Theory puzzle first, then visit the cache to collect some equipment you will need to find the Practical one.

So, Bob solved the theory puzzle easily but I found it much harder. Actually, I only solved it once Bob had given me a lesson in digital circuit design. Did I mention his electronics engineering background? My brane hurts!Anyway, after a long session with paper circuit diagrams and coloured pens I finally obtained the coordinates.


“My Brane hurts!”

Last Wednesday we drove up to the location of the first cache. Once off the main roads, we found ourselves driving down narrower and narrower lanes until we finally found ourselves on a quiet, dead straight, lane.

Freelander on a byway

Eventually the tarmac petered out and we found ourselves on a byway which, as it turned out, was the only drivable one we found all day, but I digress.

At GZ we soon located the cache. The cache was originally set up with 4 electronics kits for geocachers to borrow and we knew of one cacher who had a kit in his possession; we were relieved to find there was still one in there, I think we’d have been a bit upset if the box had been empty! Back into the Freelander and park in a nice quiet spot to conduct the circuit construction. I say ‘quiet spot’ but it was anything but. We were passed by a steady stream of dog walkers and horse riders. One of the horses was reluctant to pass us; her rider told us her horse was a bit spooked by our vehicle as “there isn’t usually a car parked there”.

Assembling the circuit

We assembled the circuit (well Bob did, I just passed him bits of wire and generally acted as electronics engineer’s mate). We powered it up and…

Bugger! Not the display we expected! Was the kit a “dud”? There had been some logs suggesting one of the kits didn’t work. Of course we’re made of sterner stuff and we weren’t giving up just yet! There then followed a session of pin straightening, wire wiggling and similar activities. Still nothing. We had a brew. Rechecked our wiring. Ah Ha! Made a small change. Bingo! Once we had it working we were able to obtain a set of coordinates. That wasn’t quite the end of it of course, we had to visit that location, obtain some more info and input that into our circuit-a-ma-bob to obtain the final coords.

While we were looking for the intermediate location a couple of farming types drove up in a muddy 4×4 to enquire what we were doing. When we said “geocaching” they didn’t seem surprised and became more friendly; “I’ve seen lots of things in the vees of trees round here” said one. Friendly muggles! Anyway, back in the car and off to the final and an excellent find of an ammo can. Of course, we then had to return to the Theory cache and put the electronics kit back for the next cacher, which we did.

These have been two of the best geocaches I’ve done to date, partly because of the work involved in solving the puzzles and partly in recognition of the amount of effort which has gone in to designing and constructing the caches. One of those occasions where awarding a favourite point doesn’t seem enough.

After our success, we found a further couple of caches along what used to be a Roman road. One end of this was apparently a byway, so we had a gander to see whether we could drive it. Unfortunately the County Council had slapped a bunch of TROs along most of it and the only part we could drive had a 2 metre width restriction. It looked a bit narrow, so I edged the nose of the Freelander into the gap while Bob spotted for me. It looked very tight and after a short discussion we abandoned the idea, parked up and walked along the byway to the nearby cache. I’ve since checked the Freelander’s spec sheet. Turns out the width with mirrors retracted is 2005mm. No wonder it wouldn’t fit!

roman road

After that it was off to the next major location on our hit list, near Saffron Walden: the Harry Potter series. This comprises 7 caches and, although I’d found 3 of them back in July 2013 whilst staying at Audley End, I still had 4 to find and Bob needed all of them. After a break for lunch we set off, starting with the ones I hadn’t yet found. This is a series of puzzles with a Harry Potter theme. I had no problem with the puzzles (ours being a family of Potter fans), also the caches themselves follow the HP theme, which is a nice touch; hence we found (amongst others), a rat from the prison at Azkaban, a dragon from the Tri-Wizard Tournament, a horcrux locket:

horcrux locket

and Tom Riddle’s diary – which doubled as one of the log books:

tom riddles diary

It was good to see my moniker there from 2013.

log book entry

Eventually, a lovely sunset reminded us it was time to head for home…


Plus, after logging our finds, we had a nice “H for Harry” shape on the map, made from smileys.

Harry potter smiley map

So ended another brilliant day’s geocaching in Cambridgeshire! Just 10 finds, currently that’s a good day’s tally for me but this day was most definitely not about the numbers.



So I’m not the master of timing…

In our local geocaching circles, the Geolympix 2016 has been a long time coming and has been something I have been looking forward to. As it turned out, something better has taken priority in the form of the NHS. They gave me a date of Thursday 28th July for my second cataract operation which, for me, was fantastic and not something I would postpone for anything. It’s so good to get my “proper” sight back but it’s a pity that I can’t sensibly attend the Geolympix. The hospital’s do’s & don’ts mean it’s unadvisable to risk damage or infection by going geocaching, plus there’s the issue of regular application of eye drops, etc…

So I’m reluctantly going to be missing out on this Mega Event. Once I’m “allowed out” again I fully intend to mop up all the new geocaches the Geolympix team have placed specifically for the Mega. It will be fantastic to be able to search for caches using the unbeatable “Human Eyeball Mk I” once again!

By the way, there was another special moment this evening:  an excellent overhead pass by the International Space Station which I was able to see with my newly restored vision. Haven’t seen one of those for a long while. Fan-bloody-tastic!

Anyway, in case this is the first you’ve heard, here’s a last minute plug for my dear friends’ Mega Event:

Geolympix banner

If you haven’t heard and fancy going, see these links:

The GC5XXYY cache page and the official GEOLYMPIX 2016 web site

And if you know nothing about the Geolympix or Geocaching, there’s this on the BBC.

Oh, and if you are interested in reading more about the saga of my retinal surgery, etc., you are welcome to visit my eye surgery blog, see the link towards the bottom of the sidebar under “Quite Interesting”.



2013: GC Review

Well, folks, it’s the 31st of December and I’m not going to find any more geocaches this year. Time for a brief review.

Turns out, in geocaching terms, that 2013 has been a bit low on the numbers. In my defence I have been busy on other matters…

In my first full year of geocaching – 2011 – my total was 357 finds. In 2012 the figure was up slightly at 371. This year I only managed 278. However, the bald figures don’t tell the full story. This year I only went caching on 80 days, the year before I cached on 116 days, while in 2011 the number of caching days was 127. As a result, my average finds per caching day was higher this year than the previous two. Also this year I had my best caching month (86 in August) and my best day (45 on 16th August).

Perhaps this year it was more about quality and less about numbers. This year my caching trips have included the UK Mega, a combined green-laning and caching day around Bedfordshire and the recent trip to Imber. Plus I finally hit my 1,000th find milestone, so it wasn’t all that bad after all, was it?

If you’ve got nothing better to do and you’d like to see more detail, you can always find my current stats page on my website.

One Thousand!

So I made it.

1,000 finds.

Yesterday Bob and I were off to an event in Wendover and I needed to find 3 caches to bring my tally up to 1,000. Rather than simply go to the event we decided to look for a couple of the new Aylesbury Ring caches first so that the event became my 1,000th cache. In addition, the caches we were targeting happened to be some of the eleven remaining unfound, so that made finding them even more desirable.

The first cache – AR 09 Eider – Cows Aand Calves – was an Unknown using AANDs to fill in the missing values to get the coordinates. This was done in a similar, less complex, way to one of my own caches (AAND it’s a nice walk from Gaddesden Row if you are interested). Once we had the final coords we drove pretty much up to GZ and, after negotiating some delightful cow-pat-and-mud mixture followed by a bit of searching we found the cache. Actually Bob spotted it first. And we were pleased to find a clean logbook so that was my 57th FTF and Bob’s (ahem) 627th.

Back in the Freelander, we relocated to the next cache on our list: AR 08 Eider – Bridge Farm. Unfortunately, despite a good search, we couldn’t find it. So I still needed No. 999. It was getting a bit late so we set off for the event. On arrival, we parked up but before going into the pub we walked a short distance to another Aylesbury Ring cache – AR01 Pochard – The Start. Found that one! Off to the pub and No. 1,000!

Wow and Phew. Finally that’s that milestone in the bag. Now for the next thousand and let’s hope it doesn’t take me another three years.