The park will be open Saturday, Sunday and Monday from 10 a.m.-7 p.m.
Visitors can purchase a pass at the park or pay the daily fee. Residents with proof of residency can get discounted resident rates.
Season family passes are $120 for residents before Wednesday, June 15, and $300 for nonresidents.
Daily resident and guest admission is $6 for adults, $5 for children and $3 for seniors or anyone after 5 p.m. Nonresident daily admission is $15 for adults, $13 for children and $8 for seniors or anyone after 5 p.m.
Click here for pass registration and additional information.
Topstone Park is at 72 Topstone Road.
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