Was the drive immersed or was it high enough in the case to avoid that?
If it has been wetted the exposed circuit boards have most likely been destroyed. It may be though that the platters, which are in a sealed compartment, could be removed and the data extracted. Be aware, though, that this is an extremely expensive service and only feasible if your data has very high value.
If the drive remained dry it should be possible to link it up to another machine and extract most/all of what was on it.