The Tham Luang cave has been closed to visitors since the Wild Boars football team were rescued alive after nearly three weeks inside the grotto's waterlogged corridors.
"We have allowed visitors to see the mouth of the cave," said Kamolchai Kotcha, director of the local conservation office that overseas the cave.
Some of the rescue equipment left behind -- including telephone wires, hoses and zip lines -- could be exhibited inside the cave for visitors to view in the future, Kotcha said.