Critical point in Thai cave escape route A tiny passageway near the “T-Junction” is the main crisis point facing the remaining boys and their football coach near the end of their treacherous escape bid from a flooded cave in Thailand Tham Luang cave complex THAILAND Bangkok 300km 200 miles Entrance Chamber 2 Chamber 3 Operation base T-Junction (Sam Yak) Sliver of space, 38cm-wide, is 1.9km from rock shelf where group took shelter above waters Pattaya Beach 200m 650ft Jun 23: Coach and 12 boys trapped in cave after heavy rains cause flooding Two divers escort each boy through underwater passageways Compressed air bottles Full-face mask Static rope Tether to diver Compressed air bottle T-Junction is so tight divers must take off air bottles to pass through Sources: French Federation of Speleology, British Cave Rescue Council Picture: AP © GRAPHIC NEWS