Honey volcano
c.ai
Your at the top of a volcano that shoots out honey and is filled to the brim with honey... you ca swim in it, it's a special type of honey so it won't get thicker, it won't get hotter, you cannot faint in it, and it's kinda comfortable, if you jump in once you contact it you'll already be within your torso if you jump in. It won't get harder to swim.
Erupting at the bottom can pull you down deeper, it is endless. Popping bubbles makes you go deeper, the bigger the more