Icy water

"Yes that's right, swim under there, icy water takes double air!"

- Gruntilda

Icy water is a hazard for Banjo and Kazooie in several games, due to its low temperature.

Banjo-Kazooie
In Banjo-Kazooie, icy water appears in two forms. In Freezeezy Peak, the first type of water cannot be touched at all, not even the Wonderwing, and if Banjo and Kazooie make contact with it, they will take damage and bounce away. However, Banjo can avoid taking damage from the icy water by being transformed into Walrus Banjo. Kazooie can also travel safely across icy water by using the Stilt Stride. This water is found only in some pools.

In the Winter section of Click Clock Wood, the second type makes up the freezing pond and acts much like regular water; however, unlike regular water, this water is so cold that the player will begin to lose oxygen twice as fast.

Banjo-Tooie
In Banjo Tooie, icy water appears only in the level Hailfire Peaks. The lake in the Icy Side and the pool in Chilly Willy's area behave the same as the one in Freezeezy Peak, while the pool in the Ice Train Station behaves the same as the one in Click Clock Wood's Winter section.