Yep I would treat the water, it is much easier then dealing with possible consequences of not treating the water
If you want to spend the extra dollars you can get UV lights that treat the water.
Great for clear water like this. They are heavier then tablets, but not taste or chemicals. And the lights are fast to treat the water.
I generally use tablets and cycle through a few different types (just so I am not getting the same chemicals all the time). As Bluegum Mic suggested the micropur tabs are good. I don't mind the iodine based ones. I sometimes take come powdered cordial or sports drink mix to hide the flavor, I still can taste it. Micropur takes about 2 hrs to do it full job though. Puritabs I think are quicker (but stronger taste). In cold water chemical treatments will need more time.
Have a great time, watch out for sun burn and do prepared for whiteouts.
Matt