Waves are a new game mechanic introduced in the Shipwrecked DLC. Waves appear in Ocean biomes at all times of the year, however, their frequency and size varies with Seasons. All naturally occurring Waves travel in the same direction, which changes during night time every day. Waves will only originate in medium and deep Ocean, and will disperse shortly if they enter the shallow ocean.
Common waves are short, and move slowly. Sailing any boat into a common wave while going in the same direction as the wave will provide a small speed boost. Sailing into waves while going in any other direction will cause wetness and damage the boat. Common waves are found during all seasons, however are less frequent in Hurricane Season and Dry Season.
Big waves appear as tall walls of water which travel faster than common Waves. In addition to spawning naturally, big waves can be created by Boat Cannon shots, exploding Gunpowder Barrels, Whales, Quacken tentacles, Tiger Shark attacks in water, Sealnado, and Dragoon Eggs falling into the ocean, even if any of these happen in shallow Ocean. Sailing any boat into a big wave will cause significant amount of wetness, and damage to the boat, regardless of the direction. However, Walani can ride big waves with her Surfboard, if she's going in the same direction as the wave. A common wave can become a big wave when crossing into deeper water. Big waves take longer to disperse when entering shallow Ocean. Naturally occurring big waves are very frequent in Hurricane Season, and can be encountered occasionally during Mild Season and Monsoon Season. During Dry Season, big waves are almost non-existent.
- The Wetness gained by crashing into both types of Waves can be reduced or completely negated based on the Water Resistance of the player.
- If the player has a total wetness resistance over 100%, crashing into a Wave will reduce wetness proportionate to their resistance. For example, if the player wears the Dumbrella and the Snakeskin Jacket, the player will gain a total resistance of 170%, and the wave would "dry" the player by 70% of the wetness it would have caused with no water resistance.
- Sometimes, when a player rides a small wave, it will act as if they are trying to go against it by damaging their boat and getting them wet.
- WX-78's Quote "01010111 01000101 01000101" is Binary for "WEE".