For those that like to fill their vacations with as much fun as possible, there are some interesting day trip destinations in the mountains that should not be missed. Just minutes away from Crestline is Lake Arrowhead and the Lake Arrowhead Village. The village has many shops and restaurants as well as the Arrowhead Queen Boat Ride. (This tour is held hourly most days throughout the year - weather permitting.) Just a few more miles of travel on Scenic Highway 18 brings you to Green Valley Lake, home of the Big Air Snow Board Park and Green Valley Lake Recreation area, as well as Snow Valley Ski Resort. Snow Valley has a full calendar of year round activities and events including mountain bike riding, fishing and horseback riding. Several miles further on will find you in Big Bear Lake, the largest of the mountain towns with many entertaining options.

If you prefer to sit back and let someone else do your driving, there is a very efficient public transportation system available - linking most communities on the mountain to the urban San Bernardino area three times daily for a nominal fare. This is also a fun way to see parts of the alpine communities you might otherwise miss.