While most cats despise water, tigers love taking baths to help keep themselves cool during the hottest parts of the day. They'll submerge themselves in nearby lakes and streams, soaking for up to an hour, but neck deep only. Tigers don't like getting water in their eyes, to the point that they'll actually enter the water backwards to prevent this from happening.
Once they return to dry land, the combination of the wetness and the wind has a pleasant cooling effect on the tiger's body and if it starts to wear off, no problem - they just repeat the process. And thanks to their webbed feet, tigers are also powerful swimmers, and have been known to cover up to 20 miles in a single outing!