Do you know what to do in case of heat exhaustion or heat stroke? Do you know how to tell the difference, and which is worse? Yesterday I was out for a run when I ran across a couple laying on the trail, and the male of the pair looked bad - eyes half-open, stuporous, pale but with flushed cheeks. They had fluids but he'd been like that for half an hour. Since there was someone healthy there, they had fluids, and they were in the shade (but he was unable to walk), I went straight back to the ranger station to report it, and they sent people out to help.
There are two points to this story. The first is that you can't assume certain emergencies will only happen in certain places. I'm in Northern California right now and people still get heat exhaustion/stroke up here. Second, if you spend a lot of time outside, chances are sooner rather than later you'll be hurt yourself, or you'll have a chance to help someone else who is. Know what to do.
Here's information about heat exhaustion and heat stroke.
Are you CPR certified? Here are San Diego area classes.
Also, snake bite
Also, broken bones/sprains.
Rocks of Lakeside Park
5 hours ago