Wife and I did the 8:00AM Black Abyss Tour in earl...

Wife and I did the 8:00AM Black Abyss Tour in early October. I would highly recommend the Black Abyss tour. Tour guides were friendly, knowledgeable and very personable. Very safe tour, lots of glow worms and rafting. Water is very cold, but the wet suits provided help and the hot shower after is amazing.