For those who've mastered the basics and are ready to take the plunge, here are some of the most challenging dives in the ocean:
1. Black Hole of Atlantis - Located in the depths of the Mediterranean, this spot is not for the faint of heart. Or, you know, the faint of lungs.
2. The Kelp Forest of Doom - Navigate through the treacherous kelp forests and avoid getting tangled in the underwater equivalent of a game of Twister.
3. The Great Barrier Reef of Despair - Home to the most venomous of jellyfish and the most boring of coral formations.
Take it to the next level and see what lies beyond the horizon.
Dare to dream bigger, but not too much, because, you know, drowning is a thing