poteast007Probably can't record underwater, but if you are asking if you car flies into a canyon river you can probably get the video out of the SD card still. From SanDisks website: "Our standard, SanDisk Ultra, SanDisk Extreme, and SanDisk Mobile Ultra lines (up to 32 GB) are capable of withstanding the following conditions: Water proof: SanDiskSD, SDHC, microSD and microSDHC memory cards are tested to withstand up to 72 hours in 1m salt or fresh water; IEC 529 IPX7"