diff --git a/geometry/estia_cave.i b/geometry/estia_cave.i
index b35e9af..3c3756c 100644
--- a/geometry/estia_cave.i
+++ b/geometry/estia_cave.i
@@ -61,7 +61,7 @@ c wall stones, starting on Skadi side upstream
                      (210366 210312 -210116)
 c back side wall
 210107  50 0.074981   100059 -210102   210115 -210116
-                     ((210132 -210367):-210313)
+                     ((210132 -210367):(210367 -210313))
 210108  50 0.074981   100059 -210102   210115 -210116
                     ((210367 210314 -210368):-210315)
 210109  50 0.074981   100059 -210102   210115 -210116
@@ -149,7 +149,24 @@ c wall level air
 210538   4 -1.2e-3   100059 -210102    208709  208642  -210131  210122 -210135
                      #(210138 -210112) #210000 #(210113 -210132) 208931
                      #(208621 208622 208623 208624  208626)
-c
+c air above cave
+210550   4 -1.2e-3   210103  208203    208709 -210118   100112  208721
+c ceiling stones from upstream to downstream
+210600  50 0.074981  210102 -210103   -208302  210131    208709 -210364
+210601  50 0.074981  210102 -210103   -210131 -210134 -210121    
+                     210111 -210204    #( 210201  210203)
+210602  50 0.074981  210102 -210103   -210131 -210134    
+                     210205 -210207    #(-210202 -210206) #(-210202 210208)
+210603  50 0.074981  210102 -210103   -210131 -210134    
+                     210210 -210211    #( 210201 -210209) #(-210202 210212)
+210604  50 0.074981  210102 -210103   -210131 -210134    
+                     210214 -210215    #( 210201 -210213) #(-210202 210216)
+210605  50 0.074981  210102 -210103   -210131 -210134    
+                     210218 -210116    #( 210201 -210217)
+                     #(-210202 210219 210137) #(210220 210137)
+210606  50 0.074981  210102 -210103    210137 -210134    
+                     210221 -210118    #( 210201 -210222)
+210607  50 0.074981  210102 -210103   -210137 -210118   -210322
 c visualize ESS 2m source term (comment for real runs)
 c 250000 0 -250000
 c visualize Selene gamma sources (comment for real runs)
diff --git a/geometry/estia_guides.i b/geometry/estia_guides.i
index 290484a..166ac66 100644
--- a/geometry/estia_guides.i
+++ b/geometry/estia_guides.i
@@ -248,4 +248,4 @@ c Tube after Selene 2 with sapphire window
 c Some air around it
 208702     4 -1.2e-3   100104 208101 208721 208703 208203 -208709
 c extension of Skadi-Estia wall
-209001   49 0.074981   210101 -210102   -208302 -208312   208709 -210364
+209001   49 0.074981   100059 -210102   -208302 -208312   208709 -210364
diff --git a/geometry/estia_surfaces.i b/geometry/estia_surfaces.i
index 1a86f87..9bcdb3a 100644
--- a/geometry/estia_surfaces.i
+++ b/geometry/estia_surfaces.i
@@ -685,12 +685,12 @@ c  Details Ceilinig Chicanes
 210214  px        3877.739 
 210215  px        4118.739 
 210216  px        4112.739 
-210217  px        4119.739 
-210218  px        4113.739 
+210217  px        4118.739 
+210218  px        4112.739 
 210219  px        4323.739 
 210220  px        4329.739 
-210221  px        4324.662 
-210222  px        4330.662 
+210221  px        4323.739 
+210222  px        4329.739 
 c  Details Wall Circles           
 210301  c/z  3453.353  -204.162    38.000 
 210302  c/z  3453.353  -204.162    40.000