Dislikes about a river house

I have lived in towns along the river and always hated that summertime brings the swarms of fish flies (don't know what the scientific name for them is). I don't know why, but it never crossed my mind that these bugs would come anywhere near our house, which is located right along the river. About three weeks ago, I took the kids outside to play like we usually do and we were bombarded with fish flies as soon as we walked out the door. They hang all over the house and deck, in the trees and bushes, and even in the grass. Fortunately, they only live about 24 hours and then it is about a week before the next swarm moves in.