Arkady Gubanov
Google
What an experience! If you're hesitant, don't! Just go for it! We saw plenty of different fish, sea turtles, corals, a ship wrecked, and plenty more. All these things were supported with knowledgeable comments from a crew, hilarious jokes, and a bunch of smiles from the crowd.
There is a quick boat ride to the submarine, around 10 minutes. Perfect time to learn a safety protocol.
The submarine runs smoothly as a knife in a butter. I didn't feel any pressure differences during any maneuver, neither while descending, turning nor ascending. There is plenty of space inside. Everyone gets its own portholes. Just sit and enjoy the beauty of the ocean.