1. Research basic information about your destination
You never want to arrive somewhere not knowing what type of resources are available.
2. Leave a copy of your itinerary with a trust family member or friend
There are too many true stories of people getting stranded or hurt and no one knowing where they are.
3. If you are driving make sure that your vehicle is in good working order.
You don't want to have your transmission blow and hearing banjos at the same time.
4. Have a copy of a map
This has happened too many times. We are traveling somewhere that we've never been to before and either our GPS/Smart phone dies or we lose signal. Having a map has saved the day many times.
5. Think ahead
Spontaneous trips are sometimes the most fun, but always make sure to have a good road map of your plans ahead of time.
Most importantly though, have fun!