diff --git a/cave_data/1626-2024-pb-01.html b/cave_data/1626-2024-pb-01.html
index eb531b028..8cbe87bc9 100644
--- a/cave_data/1626-2024-pb-01.html
+++ b/cave_data/1626-2024-pb-01.html
@@ -38,7 +38,7 @@ the form documented at
   <p>The entrance was rigged with a pulse in a block on the floor and a Y hang from 2 pulses on either side of the opening. The shaft turns out to be about 15 meters deep and about 2 meters in diameter. <p>The floor is rocky with no way on, unless you are a Mendip caver. No need to return until every other lead on the plateau is complete.</underground_description>
 <equipment></equipment>
 <references><a href="/logbookentry/2024-07-19/2024-07-19b">Logbook 2024-07-19b</a></references>
-<survey></survey>
+<survey><a href="https://expo.survex.com/expofiles/drawings/minorcaves/2024-pbC-01-plan.pdf"><br>Drawn-up plan and elevation</a></survey>
 <notes></notes>
 <length></length>
 <depth></depth>