the player encounters hostile caiman. adventures of deep features improved , more realistic graphics , larger explorable areas previous game. adventures of deep allows players travel twelve different diving spots around globe, including new polar , freshwater locations. the ability dive dolphin companion returns first game, , players able ride them move through water. players can sell salvaged treasure, including legendary artifacts money can used buy items such new styles of diving suits, items used decorate island , private reef, , player capable of diving longer time , less risk of receiving damage hostile creatures, running out of oxygen, or getting lost, among others. aquarium returns , player can walk outside tanks. several new areas introduced, example marine life annex, can put shore species such penguins, shorebirds , seals. new area small world, smaller fish , invertebrates can displayed. potentially dangerous creatures such sharks, crocodiles, , electric eels elicit warning ...