diff --git a/geotrek/api/v2/views/outdoor.py b/geotrek/api/v2/views/outdoor.py
index 37bd380c5f..05f3c9a8ce 100644
--- a/geotrek/api/v2/views/outdoor.py
+++ b/geotrek/api/v2/views/outdoor.py
@@ -26,7 +26,8 @@ def get_queryset(self):
             .prefetch_related(Prefetch('attachments',
                                        queryset=Attachment.objects.select_related('license', 'filetype', 'filetype__structure')),
                               Prefetch('view_points',
-                                       queryset=HDViewPoint.objects.select_related('content_type', 'license').annotate(geom_transformed=Transform(F('geom'), settings.API_SRID)))) \
+                                       queryset=HDViewPoint.objects.select_related('content_type', 'license').annotate(geom_transformed=Transform(F('geom'), settings.API_SRID))),
+                             'parent') \
             .order_by('name')  # Required for reliable pagination
 
 
@@ -94,5 +95,8 @@ def get_queryset(self):
         return outdoor_models.Course.objects \
             .annotate(geom_transformed=Transform(F('geom'), settings.API_SRID)) \
             .prefetch_related(Prefetch('attachments',
-                                       queryset=Attachment.objects.select_related('license', 'filetype', 'filetype__structure'))) \
+                                       queryset=Attachment.objects.select_related('license', 'filetype', 'filetype__structure')),
+                              Prefetch('course_children', queryset=outdoor_models.OrderedCourseChild.objects.select_related('parent', 'child')),
+                              Prefetch('course_parents', queryset=outdoor_models.OrderedCourseChild.objects.select_related('parent', 'child')),
+                              'parent_sites') \
             .order_by('name')  # Required for reliable pagination