diff --git a/participants.md b/participants.md
index af4dbee..df8d5f3 100644
--- a/participants.md
+++ b/participants.md
@@ -3,6 +3,8 @@ layout: page
 title: Participants
 ---
 
+[![Group photo]({{ site.baseurl }}/photos/groupphoto-gapdays2015-fall_thumb.jpg "Group photo")]({{ site.baseurl }}/photos/groupphoto-gapdays2015-fall.jpg)
+
 <ol>
 {% for p in site.data.participants %}
   <li>
diff --git a/photos/groupphoto-gapdays2015-fall.jpg b/photos/groupphoto-gapdays2015-fall.jpg
new file mode 100644
index 0000000..936ef66
Binary files /dev/null and b/photos/groupphoto-gapdays2015-fall.jpg differ
diff --git a/photos/groupphoto-gapdays2015-fall_thumb.jpg b/photos/groupphoto-gapdays2015-fall_thumb.jpg
new file mode 100644
index 0000000..bac0a1b
Binary files /dev/null and b/photos/groupphoto-gapdays2015-fall_thumb.jpg differ