If you loved Underwater, try Black Water: Abyss
A bridge between a film you've already seen and one most people haven't. Black Water: Abyss has roughly 7.3× fewer votes than Underwater — it's a deeper cut, not a mainstream recommendation. Here's what they share, and what the second one does that the first one doesn't.
What they share
Theyboth carry the dread, raw mood tags, and they sit in Action / Adventure / Horror territory. If that's the register that drew you to Underwater, the second film will land in a comparable space — through a different lens.
What Black Water: Abyss is
Waterfalls roar into the jungle's throat. Abseiling ropes vanish into black limestone just as the storm cracks the sky. Five laughing friends descend. By moonrise the cave chokes, the river rises, the air thins. Below the flood, something older waits.
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