diff --git a/cesium-integration.md b/cesium-integration.md
index 552f861..5c1b07f 100644
--- a/cesium-integration.md
+++ b/cesium-integration.md
@@ -69,4 +69,8 @@ This integration is developed in an open source layer built ontop of ol3js as ol
  * still preserve context synchronization
 * Smooth transition needs to know the elevation of the destination point of the camera
  * cesium provides an asynchronous method, synchronous planned for August
- * cesium provides in a dev branch a specific method. TDB: WHERE?
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+ * cesium provides in a dev branch a specific method. TDB: WHERE?
+* Cesium camera entering the terrain
+
+ > In regards to the camera falling through the terrain, you will want to upgrade to Cesium 1.0 in August, which will include Camera/terrain interaction (see https://github.com/AnalyticalGraphicsInc/cesium/pull/1817 and https://github.com/AnalyticalGraphicsInc/cesium/issues/1670).
+ 
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