I completed my DofE during one of the hottest summers on record a few years ago and my team was the only group to get back with everyone at the end of the week. All the other groups had people getting sunstroke etc and we were able to complete it as a team due to our initiative of knocking on random houses and asking them to fill our water bottles up. (One guy even gave us a 2 litre bottle which I carried for the group so we had extra supplies). We also decided to wake up at 4am on one of the days so that we could get the main part of our walking done in the cool before the day properly heated up. Cooking dinner with my friends and camping in beautiful locations was one of the best experiences of my life and I constantly tell people how I would love to do it all over again. The other skills I learnt were also super fun and I look back on the whole experience as one of the best things I ever did in life!!