I have been there once and all I can say is...."It's truly GODS country. UNFUKINBELIEVEABLE!!
Alaska is THEEEEE most beautiful state in the union and once you get there you will now why.
If you go stream fishing, which you better....make sure you bring PLENTY of skeeter repellent and if I was you I would start eating garlic tabs now(take one a day to keep the bugs away)
Take a HELO ride up to the mountains and just go and enjoy nature. Also remember you are going when the sun never really sets, and it does fuck with your sleeping at first.
Have a great time and bring lottttttssssss of cash, it's a little pricey up there.