Brickipedia
“This set includes 5 minifigures, 2 large transparent green shield pieces, and a few sea animals, including sharks, octopi, and mantarays. The set contains a total of 472 pieces. The set contains 3 Hydronauts and 2 Stingray. There are two vehicles within this set, one being a... More large Hydronaut submersible-the other being a small Stingray scout craft.”
Full review at brickipedia.fandom.com