diff --git a/cave_data/1623-CUCC2015DL01.html b/cave_data/1623-2015-dl-01.html
similarity index 56%
rename from cave_data/1623-CUCC2015DL01.html
rename to cave_data/1623-2015-dl-01.html
index 314f12f21..bdfb26266 100644
--- a/cave_data/1623-CUCC2015DL01.html
+++ b/cave_data/1623-2015-dl-01.html
@@ -8,15 +8,15 @@
 <body>
 <cave>
 <non_public>False</non_public>
-<caveslug>1623-CUCC2015DL01</caveslug>
+<caveslug>1623-2015-dl-01</caveslug>
 <official_name>Shagged Spit Hoehle</official_name>
 <area>1623</area>
 <kataster_code></kataster_code>
 <kataster_number></kataster_number> 
-<unofficial_number>CUCC2015DL01</unofficial_number>
+<unofficial_number>2015-dl-01</unofficial_number>
 
 <entrance>
-  <entranceslug>1623-CUCC2015DL01</entranceslug>
+  <entranceslug>1623-2015-dl-01</entranceslug>
   <letter>a</letter>
 </entrance>
 
@@ -28,13 +28,18 @@ Matt Watson</explorers>
 <survey></survey>
 <kataster_status></kataster_status>
 <underground_centre_line></underground_centre_line>
-<notes></notes>
+<notes>On 2018-06-06 04:24 +0100, Wookey wrote:
+Last week the GMH centreline work was completed and checked in, and the therionising progressed a bit and we eventually (with a lot of
+email) got to the bottom of the 'is Shagged Spit/GutenMorgenHoehle the same cave' mystery. Thanks to all who contributed - it was hard work, but we got there.
+
+(The answer is no, there are two entrances, originally believed to be the same cave, the upper (tagged, explored, described, unsurveyed, unlocated, unphotoed) one is SS and the lower (explored, surveyed, photoed, undescribed, located) one is GMH).
+</notes>
 <length>10m</length>
 <depth>7m</depth>
 <extent></extent>
 <survex_file></survex_file>
 <description_file></description_file>
-<url>1623/cucc2015dl01</url>
+<url>1623/2015-dl-01</url>
 </cave>
 </body>
 </html>
diff --git a/entrance_data/1623-CUCC2015DL01.html b/entrance_data/1623-2015-dl-01.html
similarity index 69%
rename from entrance_data/1623-CUCC2015DL01.html
rename to entrance_data/1623-2015-dl-01.html
index fa3aaec02..5699e84f4 100644
--- a/entrance_data/1623-CUCC2015DL01.html
+++ b/entrance_data/1623-2015-dl-01.html
@@ -8,7 +8,7 @@
 <body>
 <entrance>
 <non_public>False</non_public>
-<slug>1623-CUCC2015DL01</slug>
+<slug>1623-2015-dl-01</slug>
 <name></name>
 <entrance_description>7m shaft with stone bridge across top.
 
@@ -16,7 +16,11 @@
 <explorers>Dan Lenartowicz
 Matt Watson</explorers>
 <map_description></map_description>
-<location_description></location_description>
+<location_description>On 2018-06-06 04:24 +0100, Wookey wrote:
+Last week the GMH centreline work was completed and checked in, and the therionising progressed a bit and we eventually (with a lot of
+email) got to the bottom of the 'is Shagged Spit/GutenMorgenHoehle the same cave' mystery. Thanks to all who contributed - it was hard work, but we got there.
+
+(The answer is no, there are two entrances, originally believed to be the same cave, the upper (tagged, explored, described, unsurveyed, unlocated, unphotoed) one is SS and the lower (explored, surveyed, photoed, undescribed, located) one is GMH).</location_description>
 <approach></approach>
 <underground_description>p7 leads to chossy rift</underground_description>
 <photo></photo>
