Swimming Speed

The base Swimming Speed of the player without any fins or items in hand is around 4.2 meters per second, while fully submerged. Swim speed can be modified with fins crafted by the player or by equipping O2 tanks. Swim speed is also modified by holding tools or having a low hunger level. Swimming at the surface increases swimming speed.

Swim speed is capped at an upper limit of 5.60 m/s and a lower limit of 1.40 m/s.

Equipping Oxygen Tanks and the Reinforced Dive Suit will slow swimming speed. Having less than 20% hunger also reduces swimming speed, at a rate proportional to the amount of severe hunger.

Equipping any hand-held item (except the Seaglide) will reduce swim speed by 8%.

When using the Seaglide, movement speed is a constant 11 m/s regardless of your equipment.