What is swim speed 5e?

Swim speed is a type of movement speed in Dungeons and Dragons 5th edition that allows a character or creature to move faster while swimming in water. The swim speed is measured in feet per round, and is typically listed in a creature's stat block or character sheet.

Characters and creatures with a swim speed typically have an advantage while swimming, as they can move without making Athletics checks or suffering penalties from carrying heavy loads, as they would during non-swim movement. However, some aquatic environments may still impose additional challenges or hazards, such as strong currents or dangerous aquatic predators.

Swim speed can be granted by certain spells, magical items, or racial features. For example, a Triton character has a natural swim speed of 30 feet per round, while a character under the effects of the Water Breathing spell gains a swim speed equal to their normal walking speed.

Overall, having a swim speed can provide a significant advantage in aquatic encounters and environments, allowing for faster movement and greater maneuverability.