diff --git a/handbook/fester.html b/handbook/fester.html
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@@ -87,7 +87,11 @@ href="bcamps.html">base camp</a>, but watch out for Hilde's weir (see picture).
     
 <img class="onleft" src="https://expo.survex.com/expofiles/photos/2023/canyoning-grabenbach.webp" width="128" height="152" alt="Grabenbach topo" />        
 <a href="https://www.descente-canyon.com/canyoning/canyon/21833/Strubklamm.html">Descent-canyon info</a>.</p>
-    <p>Grabenbach is much closer (Bad Goisern) but more pitchy and technical.<a href="../logbookentry/2003-07-30/2003_s29">writeup here</a>. <a href="https://www.descente-canyon.com/canyoning/canyon/21824/Grabenbach.html">Descent-canyon info</a>.</p></dd>
+    <p>Grabenbach is much closer (Bad Goisern) but more pitchy and technical.<a href="../logbookentry/2003-07-30/2003_s29">writeup here</a>. <a href="https://www.descente-canyon.com/canyoning/canyon/21824/Grabenbach.html">Descent-canyon info</a>.
+
+      <a href="https://canyon.carto.net/cwiki/bin/view/Canyons/StrubklammCanyon.html">Strubklamm Canyon topo.</a>      
+    
+</p></dd>
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 <dt><b><a id="cars">Car-fixing</a></b>
 </dt><dd>Owing to being mainly impoverished students, expo has an annual crop of