Poison oak can be found on trails throughout California. Roughly 85% of people get allergic reactions to the oils on the plant.
Four species of ticks live in California with only one carrying Lyme disease. The threat of tick bites is year-round in our climate, but the risk is highest in the spring and summer.
There are 33 species of snakes in California. Only 6 are venomous, and they are all rattlesnakes. Thankfully, rattlesnakes generally aren’t aggressive unless threatened or provoked.
Mountain lion encounters are rare as they normally keep their distance. If you do happen upon a cat, they will normally lose interest and move on once they realize you are not prey.
Get a shirt. Run a trail. Drink a beer. Repeat. It’s that simple.