Since aardvarks are land mammals, it is said that they are most likely able to swim, however very little is actually known about this trait in these creatures, as swimming is not a necessity for them. Typically, all land mammals are able to swim if forced to or if necessary, the aardvark is really no exception to this rule. However they may not like the water very much as it is not something that they are used generally used to.
Although aardvarks are said to have terrible eyesight, it has been reported that they are surprisingly good swimmers, which one being reported to have swam across a river with a swift current. One of the reasons they may be good swimmers could be from their powerful legs that they use for digging. These legs can move quickly and probably help the creature swim more efficiently.