Question: This New Hampshire park, which originally opened as a trolley park with botanical gardens and is run by a few local families, is located in which town that has about a population of 29,000 as of 2010?
Sentence (from "Canobie Lake Park"): Originally opening as a trolley park on the shore of Canobie Lake on 1902, the park most prominently featured botanical gardens.
Relevant evidence: Yes