Free Theme Parks
No matter what theme park or amusement park you visit，you're going to have to open your wallet to ride a coaster. For families on a budget，free-admission parks can be great bargains.
Knoebels is one of the few remaining free-admission parks，and one of the largest in the US.Rides are separately priced.Discounted ticket books are available.Knoebels also offers pay-one-price options.With its generous collection of classic spinning rides and dizzying colored lights，Knoebels transports guests to a former time.It also takes special pride in its two popular wooden coasters，Twister and Phoenix. The park offers a campground.
The amusement area includes a numher of operators.Admission to the seaside parks and famed boardwalk(木板路)is still free，as is entrance to the public beach. It also offers free parking. A Nathan's Famous hot dog，however，will cost you.
Coney Island was the most popular in the early 18th century. Along the boardwalk there is a clear sense of Americana(美国文物).
The free-admission park offers individual ride tickets as well as unlimited ridet passes. The nearby Family Kingdom Water Park，however，requires a separate admission.
Once coastal vacation spots，traditional seaside amusement parks are now an endangered piece of Americana. Family Kingdom is among a few survivors，which is famous for the Swamp Fox wooden coaster.
As a classic amusement park that dates back to 1896，Waldameer is one of the few remaining trolley(有轨电车)parks in the US. In the late 1800s and early 1900s，electric trolley companies often built amusement parks at the end of their lines to get additional money. Waldameer is a free-admission，pay-per-ride park，which is rare these days.
21.What can people do in Knoebels?
A.Ride coasters free of charge. B.Go there for vacation camping.
C.Enjoy Nathan's Famous hot dogs. D.Experience the largest coasters in the US.
22.What can we know about Family Kingdom?
A.It is a water park. B.It requires an admission.
C.It is known for a wooden coaster. D.It is only open to people with children.
23.How is Waldameer Park different from the other three parks?
A.It is in the US. B.It is a trolley park.
C.It has the longest history. D.It is a free-admission park.