Zodiac will be fine in ANY water, it's a matter of how you get back to the shore.... or at least, .... the right shore !
I got stuck once on Lower Arrow Lake with a buddy in a vicious summer storm. The rollers were so big (right around 4'..) we could actually look over the side and see the boat 'riding the crest' of each wave and then the boat would gently slide down and into the next. There were Docks and moorings the size of fifth wheel trailers floating in the water during our freaky ride back to the breakers and boat launch....
We were in a 10' Zodiac with a 20hp Yamaha. Well made Rubber Dinghy's,..Safest boats in the water,.... period.
Cheers,
/FC....