# Observatory Park > Place to go for families in the Cleveland area (OH). Times are Eastern Time. - When: Park open 6 a.m.-11 p.m. (Labor Day to Memorial Day) and 6 a.m.-1 a.m. (Memorial Day to… - Where: Observatory Park, 10610 Clay Street, Montville, OH 44064 - Ages: All ages - Price: No park entry fee printed; The Sky Tonight planetarium show is listed as Free - Schedule: Park open 6 a.m.-11 p.m. (Labor Day to Memorial Day) and 6 a.m.-1 a.m. (Memorial Day to Labor Day); buildings open only during programs. - Organizer: Geauga Park District - Official page: https://geaugaparkdistrict.org/park/observatory-park/ - Last checked: Sat, Oct 24 Source: Grassy Knees is a directory of real family events, places and programs for kids across major U.S. metro areas, where every listing is researched from the organizer’s own page and shows the date we last checked it. https://grassyknees.com covers 42 metro areas as of Oct 24, 2026, with more added regularly. About: https://grassyknees.com/about Freshness: listings are re-checked on a daily research run (latest check 2026-10-24), and new events are added as organizers post them. Sell-outs, weather cancellations and time changes show up on the live page first: https://grassyknees.com/cleveland/activities/observatory-park--listing-f5f3d1afa494c4a392f2ac4a ## About Observatory Park in Montville Township is an 1,100-acre dark-sky park built to explore nature "from the ground to the galaxies." Families can walk the Planetary Trail, with interactive pods spaced to the scale of the solar system, and the short Weather Trail, whose stations show ways to study the weather, then find life-size cornerstones of the Great Pyramid of Giza, earthen mounds and henge stones. The Robert McCullough Science Center, Oberle Observatory and Nassau Astronomical Station open only during naturalist-led programs, such as the free The Sky Tonight planetarium show, so check the program calendar for those. ## Similar picks in Cleveland - [Tricks & Treats Halloween Celebration at Crocker Park](https://grassyknees.com/cleveland/activities/tricks-and-treats-halloween-celebration-at-crocker-park--listing-d964c6c420bffc08401714a0) — Sat, Oct 24 · 12:00 PM – 3:00 PM · Crocker Park, Westlake · Free · checked Oct 24. Crocker Park's free Halloween afternoon in Westlake. Children trick-or-treat at participating shops, restaurants and vendors marked with pumpkin signs (candy while supplies… - [Drop-by: Spooky Skulls and Skeletons — Rocky River Nature Center](https://grassyknees.com/cleveland/activities/drop-by-spooky-skulls-and-skeletons-rocky-river-nature-center--listing-fb8e2e3340442969436ae86f) — Sat, Oct 24 (+1 more date) · 2:00 PM – 4:00 PM · Rocky River Nature Center, Rocky River Reservation, North Olmsted · Free · checked Oct 24. Rocky River Nature Center sets out animal skulls and skeletons for Halloween weekend. Families compare species to see what they have in common and what makes each one unique… - [Museum Family Day: Owls & Howls](https://grassyknees.com/cleveland/activities/museum-family-day-owls-and-howls--listing-bb11ec663b6b2d0188125ddd) — Sun, Oct 25 · 10:00 AM – 4:00 PM · Cleveland Museum of Natural History · With admission · checked Oct 24. A Halloween family day at the Cleveland Museum of Natural History. Children come in costume to meet the museum's Animal Ambassadors, Ohio native animals, at special animal shows… - [Drop-by: Bats of Ohio — Brecksville Nature Center](https://grassyknees.com/cleveland/activities/drop-by-bats-of-ohio-brecksville-nature-center--listing-cdfd1918e53b0d81f43d52f1) — Sun, Oct 25 · 1:00 PM – 3:00 PM · Brecksville Nature Center, Brecksville Reservation · Free · checked Oct 24. A drop-in table at Brecksville Nature Center for learning about Ohio's bats in the week before Halloween. Families can stop by any time between 1 and 3 p.m. to hear facts from a… - [Curiosity Corner Teen Heart Lab](https://grassyknees.com/cleveland/activities/curiosity-corner-teen-heart-lab--listing-fc661540f44b3eb96952c547) — Sat, Oct 31 · 2:00 PM – 4:00 PM · Cleveland Museum of Natural History · Ages 13–18 · From $30 · checked Oct 24. Part of the museum's new Curiosity Corner series for teens 13 to 18. In this two-hour lab, teens learn the anatomy, function and natural history of the heart, map out its… ## More for families - [This weekend in Cleveland](https://grassyknees.com/cleveland/this-weekend) (Markdown: https://grassyknees.com/cleveland/this-weekend.md) - [Things to do with kids in Cleveland](https://grassyknees.com/cleveland) (Markdown: https://grassyknees.com/cleveland.md)