So in a couple of weeks I am going whale whatching. It will be on a low inflatable motorboat, so I expect plenty more splash risk than on a regular boat.

My em5mkII qnd lens combo will be splash proof but I do not look forward to discover just how much.
Also a bit worried about salt.

Has any one tried one of these sealed bags?
Besides keeping water out, are they any good photographically, or is it like shooting trough a puked on window?

Any brand reccomendations?
Inb4 no fancy stuff, out of the 50 dollars ballpark I will just leave the camera home and enjoy the naked eye experience once in a while ^.^