194 Bayville Rd., Lattingtown
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This beautiful 42-acre park welcomes on-leash dogs. Located on the former estate of renowned horticulturalist Frank Bailey, the park offers visitors well-marked trails, gardens and the freedom to stroll the property. The Arboretum is open year round from 9 a.m. until 4 p.m.
Admission fees: $5 per car, depending on the season.
More info: Visit Bailey Arboretum