Was on a noon-to-4 dove hunt one opening day with temps in the 90s, humid, not much wind. A buddy and I each carried "dove buckets" that had about 3 quarts of water each, as well as shells, etc. End of the day, he said he nearly dropped while walking the couple hundred yards to the truck (empty handed), and I know I nearly passed out when I laid back and waited for him to bring the truck to me and the gear. And we'd drank all our water. Amazing what time, sun heat and humidity will do to you.