[sam.basye]

I'd add another battery to the list. GoPro batteries don't last very long and you can never have enough. I would bring 3 as a minimum. Use two and have an extra so you have at least one to use on short notice while charging the dead ones.

The sd card should be fine as long as you upload the content to a computer at the end of each day. That way you can reformat the card for each day's use and not worry about accidentally wiping it clean by hitting the wrong button or losing the card.