Context: There are seven state parks within the confines of New York City, including Clay Pit Ponds State Park Preserve, a natural area which includes extensive riding trails, and Riverbank State Park, a 28-acre (110,000 m2) facility that rises 69 feet (21 m) over the Hudson River.

Question: How many state parks exist in New York City?
Answer: seven

Question: How large is Riverbank State Park in acres?
Answer: 28

Question: How many meters is Riverbank State Park elevated above the Hudson River?
Answer: 21

Question: How many New York state parks are within New York City?
Answer: seven

Question: Riverbank State park's highest point is how high above the Hudson River?
Answer: 69 feet