article_snippet.sent: The Tham Khoun Ex cave is only able to be safely accessed during the dry season from November to April and during this time the water is clear and deep with a rich green hue.
article_snippet.sent: In the dry season from November to April, the only part of the year safe to visit The Tham Khoun Ex cave, the water is clear and deep with a rich green hue .
article_snippet.sent: The pool is filled with water during the wet season.