diff --git a/src/c3nav/routing/router.py b/src/c3nav/routing/router.py
index d9af611f..ae7f3fe1 100644
--- a/src/c3nav/routing/router.py
+++ b/src/c3nav/routing/router.py
@@ -331,7 +331,10 @@ class Router:
         space = self.space_for_point(level=location.level.pk, point=location, restrictions=restrictions)
         if not space:
             return CustomLocationDescription(space=space, altitude=None, areas=(), near_area=None, near_poi=None)
-        altitude = space.altitudearea_for_point(location).get_altitude(location)
+        try:
+            altitude = space.altitudearea_for_point(location).get_altitude(location)
+        except LocationUnreachable:
+            altitude = None
         areas, near_area = space.areas_for_point(areas=self.areas, point=location, restrictions=restrictions)
         near_poi = space.poi_for_point(pois=self.pois, point=location, restrictions=restrictions)
         return CustomLocationDescription(space=space, altitude=altitude,