If you were close knit before, you may survive. If not, you might be better off where you can split up and not have so much togetherness! Try Disneyland or The Grand Canyon instead. :)
It sure is beautiful up there. HOt in the summer, even with the water. Some sticker bushes in some coves. Fun to jet-ski and water ski. Take the kids, but no other family members and you’ll have a ball.