Willow Springs Park, Pennsylvania

This spring-fed quarry in Richland, Pennsylvania, is loaded with underwater attractions. Divers will come across everything from a plane, school bus, caboose and Volkswagens to a crane, cabin cruiser, and a 72-foot boat called "Quest." Divers must show a c-card and dive with a buddy.

Depths to: 55 feet (17 m)
Visibility: 20-plus feet (6-plus m)
Water temperature: 50-70 degrees Fahrenheit (10-21 degrees Celsius)
Aquatic life: Includes trout, perch, pickerel, bluegill and bass.

Fees: $25 per diver per day; season passes available for $189 per diver.
On-site amenities: Camping facilities, hot showers, ramp for handicapped divers, heated changing area, rental gear and air fills.

More info: Call (717) 866-5801 or visit www.willowspringspark.com.
Open: Year-round, 8 a.m. to 6 p.m. Saturdays and Sundays; weekdays by appointment. Night diving Thursdays only, 4-10 p.m.

Getting there: From New York, Northern Jersey and Allentown, Pennsylvania, take 78 West to Route 501 south toward Bethel/Myerstown. At the traffic light, turn left on Route 422 east, go east 3 miles (4.8 km) to the next traffic light, then turn right on Millardsville Road (sign says to Richland). Willow Springs is a half-mile down the road on the left.