Exit out the Main Entrance of CBR. At the stop light, take a RIGHT. You'll go through a traffic light, and under a bridge. At the next light, take a LEFT. Keep going until the road comes to a dead end. Take a LEFT. You'll run into a Security guard shack. Immedietly after the guard shack is the entrance to Fort Wilderness. Park there.
Hop on board any bus that has the word SETTLEMENT on it. Doesn't matter what color. Buses run every 10 minutes, and its a 5 minute ride. Get off at the Settlement Depot. Follow the signs to Pioneer Hall.
To get back to your car, hop on board any bus marked OUTPOST. Doesn't matter what color. Get off at the Outpost Depot, and find your car. Exit the parking lot, and take a LEFT. At the first traffic light, take a RIGHT. Follow that road till it dead ends, and take a RIGHT. Go under the bridge, through the first light, and take a LEFT at the next light into Caribbean Beach.
Total travel time in each direction will be 30-45 minutes.