Hi, my family is going to be staying in Denali 3 days (July 21-23). I do not mind using DEET (we have to use it in Virginia during the summer), but am wondering if it's necessary to have a mosquito net hat as well. Seems to me that it would be best to avoid a hat if possible, given the added expense and reduced visibility through the net. But I wanted to get advice on this from those better informed than I. Many thanks!