These human-assisted habitats act like defibrillation paddles, revving up struggling reefs and reviving declining fish populations from Florida to Indonesia and beyond.

ScubaLab headed to the Bahamas aboard a Blackbeard's liveaboard sailboat to try out some new dive gear — see what our editors had to say.

The Koh Chang region of Thailand now boasts the largest artificial reef in the Southeast Asian country with the scuttling of the HTMS _Chang_.