A murky pool with a beautiful, especially rare water flower floating on its surface. If players approach, an ancient and powerfully hungry octopus launches itself onto the player's face (Reflex save DC 15 negates).
The octopus squeezes the player's head for 1d8 damage every round until destroyed.
Any attempt to destroy the face-hugging octopus has 50% of doing another 1d8 collateral damage to the player.
Octopus photo by Masaaki Komori. Unsplash License.