diff --git a/maps/natural_ground.tscn b/maps/natural_ground.tscn
index a73f8e4..034d832 100644
--- a/maps/natural_ground.tscn
+++ b/maps/natural_ground.tscn
@@ -1,4 +1,4 @@
-[gd_scene load_steps=13 format=3 uid="uid://bfo13c5k8xu0x"]
+[gd_scene load_steps=14 format=3 uid="uid://bfo13c5k8xu0x"]
 
 [ext_resource type="ArrayMesh" uid="uid://5nujxqav8ev6" path="res://maps/meshes/import/microvegetation_aa.tres" id="1_gpetq"]
 [ext_resource type="Material" uid="uid://dpegsmygxcfmv" path="res://maps/materials/basic_ground.material" id="1_m0t8b"]
@@ -7,6 +7,9 @@
 [ext_resource type="PackedScene" uid="uid://8aljdwbvgxr4" path="res://maps/objects/tree_aa.tscn" id="5_tjsaf"]
 [ext_resource type="CompressedTexture3D" uid="uid://mnqonf3lhid4" path="res://maps/textures/ta-brumes-02_01.png" id="6_osvcv"]
 
+[sub_resource type="BoxShape3D" id="BoxShape3D_xise6"]
+size = Vector3(40.8373, 12.9017, 35.145)
+
 [sub_resource type="QuadMesh" id="QuadMesh_cbf1j"]
 material = ExtResource( "1_m0t8b" )
 
@@ -37,6 +40,12 @@ density_texture = ExtResource( "6_osvcv" )
 
 [node name="natural_ground" type="Node3D"]
 
+[node name="natural_ground_area" type="Area3D" parent="."]
+
+[node name="CollisionShape3D" type="CollisionShape3D" parent="natural_ground_area"]
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 5.63323, 0)
+shape = SubResource( "BoxShape3D_xise6" )
+
 [node name="ground" type="MeshInstance3D" parent="."]
 transform = Transform3D(50, 0, 0, 0, 0, 1, 0, -50, 0, 0, 0, 0)
 mesh = SubResource( "QuadMesh_cbf1j" )
diff --git a/sounds/nature/nature_loop_Boucle.ogg b/sounds/nature/nature_loop_Boucle.ogg
new file mode 100644
index 0000000..a099626
Binary files /dev/null and b/sounds/nature/nature_loop_Boucle.ogg differ
diff --git a/sounds/nature/nature_loop_Boucle.ogg.import b/sounds/nature/nature_loop_Boucle.ogg.import
new file mode 100644
index 0000000..8618309
--- /dev/null
+++ b/sounds/nature/nature_loop_Boucle.ogg.import
@@ -0,0 +1,16 @@
+[remap]
+
+importer="oggvorbisstr"
+type="AudioStreamOGGVorbis"
+uid="uid://dt2j2mdmdrx4y"
+path="res://.godot/imported/nature_loop_Boucle.ogg-3326fd56a63b282df5288f67a9015ae1.oggvorbisstr"
+
+[deps]
+
+source_file="res://sounds/nature/nature_loop_Boucle.ogg"
+dest_files=["res://.godot/imported/nature_loop_Boucle.ogg-3326fd56a63b282df5288f67a9015ae1.oggvorbisstr"]
+
+[params]
+
+loop=true
+loop_offset=0